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rearrangement</title> <meta name="description" content="Search results for: chromosome rearrangement"> <meta name="keywords" content="chromosome rearrangement"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="chromosome rearrangement"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 152</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: chromosome rearrangement</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">152</span> A Second Order Genetic Algorithm for Traveling Salesman Problem</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=T.%20Toathom">T. Toathom</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Munlin"> M. Munlin</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Sugunnasil"> P. Sugunnasil</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The traveling salesman problem (TSP) is one of the best-known problems in optimization problem. There are many research regarding the TSP. One of the most usage tool for this problem is the genetic algorithm (GA). The chromosome of the GA for TSP is normally encoded by the order of the visited city. However, the traditional chromosome encoding scheme has some limitations which are twofold: the large solution space and the inability to encapsulate some information. The number of solution for a certain problem is exponentially grow by the number of city. Moreover, the traditional chromosome encoding scheme fails to recognize the misplaced correct relation. It implies that the tradition method focuses only on exact solution. In this work, we relax some of the concept in the GA for TSP which is the exactness of the solution. The proposed work exploits the relation between cities in order to reduce the solution space in the chromosome encoding. In this paper, a second order GA is proposed to solve the TSP. The term second order refers to how the solution is encoded into chromosome. The chromosome is divided into 2 types: the high order chromosome and the low order chromosome. The high order chromosome is the chromosome that focus on the relation between cities such as the city A should be visited before city B. On the other hand, the low order chromosome is a type of chromosome that is derived from a high order chromosome. In other word, low order chromosome is encoded by the traditional chromosome encoding scheme. The genetic operation, mutation and crossover, will be performed on the high order chromosome. Then, the high order chromosome will be mapped to a group of low order chromosomes whose characteristics are satisfied with the high order chromosome. From the mapped set of chromosomes, the champion chromosome will be selected based on the fitness value which will be later used as a representative for the high order chromosome. The experiment is performed on the city data from TSPLIB. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=genetic%20algorithm" title="genetic algorithm">genetic algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=traveling%20salesman%20problem" title=" traveling salesman problem"> traveling salesman problem</a>, <a href="https://publications.waset.org/abstracts/search?q=initial%20population" title=" initial population"> initial population</a>, <a href="https://publications.waset.org/abstracts/search?q=chromosomes%20encoding" title=" chromosomes encoding"> chromosomes encoding</a> </p> <a href="https://publications.waset.org/abstracts/42491/a-second-order-genetic-algorithm-for-traveling-salesman-problem" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/42491.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">270</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">151</span> Effect of Interaction between Colchicine Concentrations and Treatment Time Duration on the Percentage of Chromosome Polyploidy of Crepis capillaris (with and without 2B Chromosome) in vitro Culture</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Payman%20A.%20A.%20Zibari">Payman A. A. Zibari</a>, <a href="https://publications.waset.org/abstracts/search?q=Mosleh%20M.%20S.%20Duhoky"> Mosleh M. S. Duhoky</a> </p> <p class="card-text"><strong>Abstract:</strong></p> These experiments were conducted at Tissue Culture Laboratory/ Faculty of Agriculture / University of Duhok during the period from January 2011 to May 2013. The objectives of this study were to study the effects of interaction between colchcine concentrations and treatment time duration of Creps capilaris (with and without 2B chromosome) on chromosome polyploidy during fifteen passages until regeneration of plants from the callus. Data showed that high percentage of chromosome polyploidy approximately can be obtained from high concentration of colchicin and long time of duration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=polyploidy" title="polyploidy">polyploidy</a>, <a href="https://publications.waset.org/abstracts/search?q=Crepis%20capilaris" title=" Crepis capilaris"> Crepis capilaris</a>, <a href="https://publications.waset.org/abstracts/search?q=colchicine" title=" colchicine"> colchicine</a>, <a href="https://publications.waset.org/abstracts/search?q=B%20chromosome" title=" B chromosome"> B chromosome</a> </p> <a href="https://publications.waset.org/abstracts/38718/effect-of-interaction-between-colchicine-concentrations-and-treatment-time-duration-on-the-percentage-of-chromosome-polyploidy-of-crepis-capillaris-with-and-without-2b-chromosome-in-vitro-culture" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38718.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">194</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">150</span> Prevalence of Down Syndrome: A Single-Center Study in Bandung, Indonesia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bremmy%20Laksono">Bremmy Laksono</a>, <a href="https://publications.waset.org/abstracts/search?q=Riksa%20Parikrama"> Riksa Parikrama</a>, <a href="https://publications.waset.org/abstracts/search?q=Nur%20A.%20Rosyada"> Nur A. Rosyada</a>, <a href="https://publications.waset.org/abstracts/search?q=Willyanti%20Soewondo"> Willyanti Soewondo</a>, <a href="https://publications.waset.org/abstracts/search?q=Dadang%20S.%20H.%20Effendi"> Dadang S. H. Effendi</a>, <a href="https://publications.waset.org/abstracts/search?q=Eriska%20Rianti"> Eriska Rianti</a>, <a href="https://publications.waset.org/abstracts/search?q=Arlette%20S.%20Setiawan"> Arlette S. Setiawan</a>, <a href="https://publications.waset.org/abstracts/search?q=Ine%20Sasmita"> Ine Sasmita</a>, <a href="https://publications.waset.org/abstracts/search?q=Risti%20S.%20Primanti"> Risti S. Primanti</a>, <a href="https://publications.waset.org/abstracts/search?q=Erna%20Kurnikasari"> Erna Kurnikasari</a>, <a href="https://publications.waset.org/abstracts/search?q=Yunia%20Sribudiani"> Yunia Sribudiani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Down syndrome (DS) is a chromosomal abnormality characterised by complete 21 chromosome trisomy (classical or non-disjunction), or partial 21 chromosome trisomy (mosaicism), or chromosome rearrangement involving chromosome 21 (translocation). This study was carried out to describe the frequency of DS patients in a research institution in the city of Bandung, Indonesia. This descriptive study also provides a picture of the residential location and surrounding area of their dwellings. This study involved people with DS in various age whose chromosome were evaluated by conventional karyotyping method and FISH. Data were collected from 60 patients with DS from a total 150 patients during the period of September 2015 to August 2016 who were referred to Cell Culture and Cytogenetics Laboratory, Faculty of Medicine Universitas Padjadjaran, Indonesia. Results showed that the most common type of DS was non-disjunction (93%), followed by mosaicism (5%), no patient with translocation DS (0%), and a very rare type of tetrasomy 21 (2%). There were 39 males (65%) and 21 females (35%) of DS patient. Most of them live in suburban area beyond Bandung city (55%) while the rest live inside urban area of Bandung city (45%). They live mostly in dense area of greater Bandung area (65%) and only a few live in mid-density area (25%) and the least live in sparse populated area (10%). Their houses are mostly located in residential estate area (55%), nearby industrial area (37%), and around agricultural area (8%). Based on the study, it could be concluded that non-disjunction DS is the most common type. DS patients referred to the laboratory mostly came from dense residential zone in suburban area outside Bandung city. The low number of DS patients referred to the laboratory for chromosome analysis was the highlight to improve health service for people with genetic disorder. This study offered several information regarding area of DS patients’ residence and the condition of neighbourhood in Bandung city where they live as well. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chromosome" title="chromosome">chromosome</a>, <a href="https://publications.waset.org/abstracts/search?q=descriptive" title=" descriptive"> descriptive</a>, <a href="https://publications.waset.org/abstracts/search?q=Down%20syndrome" title=" Down syndrome"> Down syndrome</a>, <a href="https://publications.waset.org/abstracts/search?q=prevalence" title=" prevalence"> prevalence</a> </p> <a href="https://publications.waset.org/abstracts/58434/prevalence-of-down-syndrome-a-single-center-study-in-bandung-indonesia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58434.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">278</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">149</span> Chromosomes Are Present in a Fixed Region on the Equatorial Plate Within the Interphase of Cell Division</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chunxiao%20Wu">Chunxiao Wu</a>, <a href="https://publications.waset.org/abstracts/search?q=Dongyun%20Jiang"> Dongyun Jiang</a>, <a href="https://publications.waset.org/abstracts/search?q=Tao%20Jiang"> Tao Jiang</a>, <a href="https://publications.waset.org/abstracts/search?q=Luxia%20Xu"> Luxia Xu</a>, <a href="https://publications.waset.org/abstracts/search?q=Qian%20Xu"> Qian Xu</a>, <a href="https://publications.waset.org/abstracts/search?q=Meng%20Zhao"> Meng Zhao</a>, <a href="https://publications.waset.org/abstracts/search?q=Qin%20Zhu"> Qin Zhu</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhigang%20Guo"> Zhigang Guo</a>, <a href="https://publications.waset.org/abstracts/search?q=Jinlan%20Pan"> Jinlan Pan</a>, <a href="https://publications.waset.org/abstracts/search?q=Suning%20Chen"> Suning Chen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The stability and evolution of human genetics depends on chromosomes (and chromosome-chromosome interactions). We wish to understand the spatial location of chromosomes in dividing cells in order to understand the relationship between chromosome-chromosome interactions and to further investigate the role of chromosomes and their impact on cell biological behavior. In this study, we explored the relative spatial positional relationships of chromosomes [t (9;22) and t (15;17)] in B-ALL cells by using the three-dimensions DNA in situ fluorescent hybridization (3D-FISH) method. The results showed that chromosomes [t (9;22) and t (15;17)] showed relatively stable spatial relationships. The relative stability of the spatial location of chromosomes in dividing cells may be relevant to disease. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chromosome" title="chromosome">chromosome</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20genetics" title=" human genetics"> human genetics</a>, <a href="https://publications.waset.org/abstracts/search?q=chromosome%20territory" title=" chromosome territory"> chromosome territory</a>, <a href="https://publications.waset.org/abstracts/search?q=3D-FISH" title=" 3D-FISH"> 3D-FISH</a> </p> <a href="https://publications.waset.org/abstracts/188219/chromosomes-are-present-in-a-fixed-region-on-the-equatorial-plate-within-the-interphase-of-cell-division" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/188219.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">46</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">148</span> The Prevalence of X-Chromosome Aneuploidy in Recurrent Pregnancy Loss</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rim%20Frikha">Rim Frikha</a>, <a href="https://publications.waset.org/abstracts/search?q=Nouha%20Bouayed"> Nouha Bouayed</a>, <a href="https://publications.waset.org/abstracts/search?q=Afifa%20Sellami"> Afifa Sellami</a>, <a href="https://publications.waset.org/abstracts/search?q=Nozha%20Chakroun"> Nozha Chakroun</a>, <a href="https://publications.waset.org/abstracts/search?q=Salima%20Douad"> Salima Douad</a>, <a href="https://publications.waset.org/abstracts/search?q=Leila%20Keskes"> Leila Keskes</a>, <a href="https://publications.waset.org/abstracts/search?q=Tarek%20Rebai"> Tarek Rebai</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recurrent pregnancy loss (RPL), classically defined as the occurrence of two or more failed pregnancies, is a serious reproductive problem, in which, chromosomal rearrangements in either carrier are a major cause; mainly the chromosome aneuploidy. This study was conducted to determine the frequency and contribution of X-chromosome aneuploidy in recurrent pregnancy loss. A retrospective study was carried out among 100 couples with more than 2 miscarriages, referred to our genetic counseling. In all the cases the detailed reproductive histories were taken. Chromosomal analysis was performed using RHG banding in peripheral blood. Of a total of 100 couples; 3 patients with a detected X-chromosome aneuploidy were identified with an overall frequency of 3%. Chromosome abnormalities are as below: a Turner syndrome with 45, X/46, XX mosaicism, a 47, XXX, and a Klinefelter syndrome with 46, XY/47, XXY. These data show a high incidence of X-chromosome aneuploidy; mainly with mosaicism; in RPL. Thus, couples with such chromosomal abnormality should be referred to a clinical geneticist with whom the option of pre-implantation genetic diagnosis in subsequent pregnancy should be discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aneuploidy" title="aneuploidy">aneuploidy</a>, <a href="https://publications.waset.org/abstracts/search?q=genetic%20testing" title=" genetic testing"> genetic testing</a>, <a href="https://publications.waset.org/abstracts/search?q=recurrent%20pregnancy%20loss" title="recurrent pregnancy loss">recurrent pregnancy loss</a>, <a href="https://publications.waset.org/abstracts/search?q=X-chromosome" title=" X-chromosome"> X-chromosome</a> </p> <a href="https://publications.waset.org/abstracts/45376/the-prevalence-of-x-chromosome-aneuploidy-in-recurrent-pregnancy-loss" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45376.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">360</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">147</span> Frequency of BCR-ABL Fusion Transcript Types with Chronic Myeloid Leukemia by Multiplex Polymerase Chain Reaction in Srinagarind Hospital, Khon Kaen Thailand</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kanokon%20Chaicom">Kanokon Chaicom</a>, <a href="https://publications.waset.org/abstracts/search?q=Chitima%20Sirijerachai"> Chitima Sirijerachai</a>, <a href="https://publications.waset.org/abstracts/search?q=Kanchana%20%20Chansung"> Kanchana Chansung</a>, <a href="https://publications.waset.org/abstracts/search?q=Pinsuda%20Klangsang"> Pinsuda Klangsang</a>, <a href="https://publications.waset.org/abstracts/search?q=Boonpeng%20Palaeng"> Boonpeng Palaeng</a>, <a href="https://publications.waset.org/abstracts/search?q=Prajuab%20Chaimanee"> Prajuab Chaimanee</a>, <a href="https://publications.waset.org/abstracts/search?q=Pimjai%20Ananta"> Pimjai Ananta</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Chronic myeloid leukemia (CML) is characterized by the consistent involvement of the Philadelphia chromosome (Ph), which is derived from a reciprocal translocation between chromosome 9 and 22, the main product of the t(9;22) (q34;q11) translocation, is found in the leukemic clone of at least 95% of CML patients. There are two major forms of the BCR/ABL fusion gene, involving ABL exon 2, but including different exons of BCR gene. The transcripts b2a2 (e13a2) or b3a2 (e14a2) code for a p210 protein. Another fusion gene leads to the expression of an e1a2 transcript, which codes for a p190 protein. Other less common fusion genes are b3a3 or b2a3, which codes for a p203 protein and e19a2 (c3a2) transcript, which codes for a p230 protein. Its frequency varies in different populations. In this study, we aimed to report the frequency of BCR-ABL fusion transcript types with CML by multiplex PCR (polymerase chain reaction) in Srinagarind Hospital, Khon Kaen, Thailand. Multiplex PCR for BCR-ABL was performed on 58 patients, to detect different types of BCR-ABL transcripts of the t (9; 22). All patients examined were positive for some type of BCR/ABL rearrangement. The majority of the patients (93.10%) expressed one of the p210 BCR-ABL transcripts, b3a2 and b2a2 transcripts were detected in 53.45% and 39.65% respectively. The expression of an e1a2 transcript showed 3.75%. Co-expression of p210/p230 was detected in 3.45%. Co-expression of p210/p190 was not detected. Multiplex PCR is useful, saves time and reliable in the detection of BCR-ABL transcript types. The frequency of one or other rearrangement in CML varies in different population. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chronic%20myeloid%20leukemia" title="chronic myeloid leukemia">chronic myeloid leukemia</a>, <a href="https://publications.waset.org/abstracts/search?q=BCR-ABL%20fusion%20transcript%20types" title=" BCR-ABL fusion transcript types"> BCR-ABL fusion transcript types</a>, <a href="https://publications.waset.org/abstracts/search?q=multiplex%20PCR" title=" multiplex PCR"> multiplex PCR</a>, <a href="https://publications.waset.org/abstracts/search?q=frequency%20of%20BCR-ABL%20fusion" title=" frequency of BCR-ABL fusion"> frequency of BCR-ABL fusion</a> </p> <a href="https://publications.waset.org/abstracts/91777/frequency-of-bcr-abl-fusion-transcript-types-with-chronic-myeloid-leukemia-by-multiplex-polymerase-chain-reaction-in-srinagarind-hospital-khon-kaen-thailand" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/91777.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">244</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">146</span> Chaos Fuzzy Genetic Algorithm</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Jalali%20Varnamkhasti">Mohammad Jalali Varnamkhasti</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The genetic algorithms have been very successful in handling difficult optimization problems. The fundamental problem in genetic algorithms is premature convergence. This paper, present a new fuzzy genetic algorithm based on chaotic values instead of the random values in genetic algorithm processes. In this algorithm, for initial population is used chaotic sequences and then a new sexual selection proposed for selection mechanism. In this technique, the population is divided such that the male and female would be selected in an alternate way. The layout of the male and female chromosomes in each generation is different. A female chromosome is selected by tournament selection size from the female group. Then, the male chromosome is selected, in order of preference based on the maximum Hamming distance between the male chromosome and the female chromosome or The highest fitness value of male chromosome (if more than one male chromosome is having the maximum Hamming distance existed), or Random selection. The selections of crossover and mutation operators are achieved by running the fuzzy logic controllers, the crossover and mutation probabilities are varied on the basis of the phenotype and genotype characteristics of the chromosome population. Computational experiments are conducted on the proposed techniques and the results are compared with some other operators, heuristic and local search algorithms commonly used for solving p-median problems published in the literature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=genetic%20algorithm" title="genetic algorithm">genetic algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=fuzzy%20system" title=" fuzzy system"> fuzzy system</a>, <a href="https://publications.waset.org/abstracts/search?q=chaos" title=" chaos"> chaos</a>, <a href="https://publications.waset.org/abstracts/search?q=sexual%20selection" title=" sexual selection"> sexual selection</a> </p> <a href="https://publications.waset.org/abstracts/30310/chaos-fuzzy-genetic-algorithm" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30310.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">385</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">145</span> Cytogenetic Characterization of the VERO Cell Line Based on Comparisons with the Subline; Implication for Authorization and Quality Control of Animal Cell Lines</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fumio%20Kasai">Fumio Kasai</a>, <a href="https://publications.waset.org/abstracts/search?q=Noriko%20Hirayama"> Noriko Hirayama</a>, <a href="https://publications.waset.org/abstracts/search?q=Jorge%20Pereira"> Jorge Pereira</a>, <a href="https://publications.waset.org/abstracts/search?q=Azusa%20Ohtani"> Azusa Ohtani</a>, <a href="https://publications.waset.org/abstracts/search?q=Masashi%20Iemura"> Masashi Iemura</a>, <a href="https://publications.waset.org/abstracts/search?q=Malcolm%20A.%20Ferguson%20Smith"> Malcolm A. Ferguson Smith</a>, <a href="https://publications.waset.org/abstracts/search?q=Arihiro%20Kohara"> Arihiro Kohara</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The VERO cell line was established in 1962 from normal tissue of an African green monkey, Chlorocebus aethiops (2n=60), and has been commonly used worldwide for screening for toxins or as a cell substrate for the production of viral vaccines. The VERO genome was sequenced in 2014; however, its cytogenetic features have not been fully characterized as it contains several chromosome abnormalities and different karyotypes coexist in the cell line. In this study, the VERO cell line (JCRB0111) was compared with one of the sublines. In contrast to 59 chromosomes as the modal chromosome number in the VERO cell line, the subline had two peaks of 56 and 58 chromosomes. M-FISH analysis using human probes revealed that the VERO cell line was characterized by a translocation t(2;25) found in all metaphases, which was absent in the subline. Different abnormalities detected only in the subline show that the cell line is heterogeneous, indicating that the subline has the potential to change its genomic characteristics during cell culture. The various alterations in the two independent lineages suggest that genomic changes in both VERO cells can be accounted for by progressive rearrangements during their evolution in culture. Both t(5;X) and t(8;14) observed in all metaphases of the two cell lines might have a key role in VERO cells and could be used as genetic markers to identify VERO cells. The flow karyotype shows distinct differences from normal. Further analysis of sorted abnormal chromosomes may uncover other characteristics of VERO cells. Because of the absence of STR data, cytogenetic data are important in characterizing animal cell lines and can be an indicator of their quality control. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=VERO" title="VERO">VERO</a>, <a href="https://publications.waset.org/abstracts/search?q=cell%20culture%20passage" title=" cell culture passage"> cell culture passage</a>, <a href="https://publications.waset.org/abstracts/search?q=chromosome%20rearrangement" title=" chromosome rearrangement"> chromosome rearrangement</a>, <a href="https://publications.waset.org/abstracts/search?q=heterogeneous%20cells" title=" heterogeneous cells"> heterogeneous cells</a> </p> <a href="https://publications.waset.org/abstracts/32913/cytogenetic-characterization-of-the-vero-cell-line-based-on-comparisons-with-the-subline-implication-for-authorization-and-quality-control-of-animal-cell-lines" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32913.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">416</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">144</span> Brachypodium: A Model Genus to Study Grass Genome Organisation at the Cytomolecular Level</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=R.%20Hasterok">R. Hasterok</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Betekhtin"> A. Betekhtin</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Borowska"> N. Borowska</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Braszewska-Zalewska"> A. Braszewska-Zalewska</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Breda"> E. Breda</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Chwialkowska"> K. Chwialkowska</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Gorkiewicz"> R. Gorkiewicz</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Idziak"> D. Idziak</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Kwasniewska"> J. Kwasniewska</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Kwasniewski"> M. Kwasniewski</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Siwinska"> D. Siwinska</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Wiszynska"> A. Wiszynska</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Wolny"> E. Wolny</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In contrast to animals, the organisation of plant genomes at the cytomolecular level is still relatively poorly studied and understood. However, the Brachypodium genus in general and B. distachyon in particular represent exceptionally good model systems for such study. This is due not only to their highly desirable ‘model’ biological features, such as small nuclear genome, low chromosome number and complex phylogenetic relations, but also to the rapidly and continuously growing repertoire of experimental tools, such as large collections of accessions, WGS information, large insert (BAC) libraries of genomic DNA, etc. Advanced cytomolecular techniques, such as fluorescence in situ hybridisation (FISH) with evermore sophisticated probes, empowered by cutting-edge microscope and digital image acquisition and processing systems, offer unprecedented insight into chromatin organisation at various phases of the cell cycle. A good example is chromosome painting which uses pools of chromosome-specific BAC clones, and enables the tracking of individual chromosomes not only during cell division but also during interphase. This presentation outlines the present status of molecular cytogenetic analyses of plant genome structure, dynamics and evolution using B. distachyon and some of its relatives. The current projects focus on important scientific questions, such as: What mechanisms shape the karyotypes? Is the distribution of individual chromosomes within an interphase nucleus determined? Are there hot spots of structural rearrangement in Brachypodium chromosomes? Which epigenetic processes play a crucial role in B. distachyon embryo development and selective silencing of rRNA genes in Brachypodium allopolyploids? The authors acknowledge financial support from the Polish National Science Centre (grants no. 2012/04/A/NZ3/00572 and 2011/01/B/NZ3/00177) <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Brachypodium" title="Brachypodium">Brachypodium</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20distachyon" title=" B. distachyon"> B. distachyon</a>, <a href="https://publications.waset.org/abstracts/search?q=chromosome" title=" chromosome"> chromosome</a>, <a href="https://publications.waset.org/abstracts/search?q=FISH" title=" FISH"> FISH</a>, <a href="https://publications.waset.org/abstracts/search?q=molecular%20cytogenetics" title=" molecular cytogenetics"> molecular cytogenetics</a>, <a href="https://publications.waset.org/abstracts/search?q=nucleus" title=" nucleus"> nucleus</a>, <a href="https://publications.waset.org/abstracts/search?q=plant%20genome%20organisation" title=" plant genome organisation"> plant genome organisation</a> </p> <a href="https://publications.waset.org/abstracts/12066/brachypodium-a-model-genus-to-study-grass-genome-organisation-at-the-cytomolecular-level" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12066.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">351</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">143</span> Genome-Wide Analysis of Long Terminal Repeat (LTR) Retrotransposons in Rabbit (Oryctolagus cuniculus) </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zeeshan%20Khan">Zeeshan Khan</a>, <a href="https://publications.waset.org/abstracts/search?q=Faisal%20Nouroz"> Faisal Nouroz</a>, <a href="https://publications.waset.org/abstracts/search?q=Shumaila%20%20Noureen"> Shumaila Noureen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> European or common rabbit (Oryctolagus cuniculus) belongs to class Mammalia, order Lagomorpha of family Leporidae. They are distributed worldwide and are native to Europe (France, Spain and Portugal) and Africa (Morocco and Algeria). LTR retrotransposons are major Class I mobile genetic elements of eukaryotic genomes and play a crucial role in genome expansion, evolution and diversification. They were mostly annotated in various genomes by conventional approaches of homology searches, which restricted the annotation of novel elements. Present work involved de novo identification of LTR retrotransposons by LTR_FINDER in haploid genome of rabbit (2247.74 Mb) distributed in 22 chromosomes, of which 7,933 putative full-length or partial copies were identified containing 69.38 Mb of elements, accounting 3.08% of the genome. Highest copy numbers (731) were found on chromosome 7, followed by chromosome 12 (705), while the lowest copy numbers (27) were detected in chromosome 19 with no elements identified from chromosome 21 due to partially sequenced chromosome, unidentified nucleotides (N) and repeated simple sequence repeats (SSRs). The identified elements ranged in sizes from 1.2 - 25.8 Kb with average sizes between 2-10 Kb. Highest percentage (4.77%) of elements was found in chromosome 15, while lowest (0.55%) in chromosome 19. The most frequent tRNA type was Arginine present in majority of the elements. Based on gained results, it was estimated that rabbit exhibits 15,866 copies having 137.73 Mb of elements accounting 6.16% of diploid genome (44 chromosomes). Further molecular analyses will be helpful in chromosomal localization and distribution of these elements on chromosomes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rabbit" title="rabbit">rabbit</a>, <a href="https://publications.waset.org/abstracts/search?q=LTR%20retrotransposons" title=" LTR retrotransposons"> LTR retrotransposons</a>, <a href="https://publications.waset.org/abstracts/search?q=genome" title=" genome"> genome</a>, <a href="https://publications.waset.org/abstracts/search?q=chromosome" title=" chromosome"> chromosome</a> </p> <a href="https://publications.waset.org/abstracts/90817/genome-wide-analysis-of-long-terminal-repeat-ltr-retrotransposons-in-rabbit-oryctolagus-cuniculus" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/90817.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">149</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">142</span> Analysis of the AZF Region in Slovak Men with Azoospermia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J.%20Bernasovsk%C3%A1">J. Bernasovská</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Lohajov%C3%A1%20Behulov%C3%A1"> R. Lohajová Behulová</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Petrej%C4%8Dikov%C3%A1"> E. Petrejčiková</a>, <a href="https://publications.waset.org/abstracts/search?q=I.%20Boro%C5%88ov%C3%A1"> I. Boroňová</a>, <a href="https://publications.waset.org/abstracts/search?q=I.%20Bernasovsk%C3%BD"> I. Bernasovský</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Y chromosome microdeletions are the most common genetic cause of male infertility and screening for these microdeletions in azoospermic or severely oligospermic men is now standard practice. Analysis of the Y chromosome in men with azoospermia or severe oligozoospermia has resulted in the identification of three regions in the euchromatic part of the long arm of the human Y chromosome (Yq11) that are frequently deleted in men with otherwise unexplained spermatogenic failure. PCR analysis of microdeletions in the AZFa, AZFb and AZFc regions of the human Y chromosome is an important screening tool. The aim of this study was to analyse the type of microdeletions in men with fertility disorders in Slovakia. We evaluated 227 patients with azoospermia and with normal karyotype. All patient samples were analyzed cytogenetically. For PCR amplification of sequence-tagged sites (STS) of the AZFa, AZFb and AZFc regions of the Y chromosome was used Devyser AZF set. Fluorescently labeled primers for all markers in one multiplex PCR reaction were used and for automated visualization and identification of the STS markers we used genetic analyzer ABi 3500xl (Life Technologies). We reported 13 cases of deletions in the AZF region 5,73%. Particular types of deletions were recorded in each region AZFa,b,c .The presence of microdeletions in the AZFc region was the most frequent. The study confirmed that percentage of microdeletions in the AZF region is low in Slovak azoospermic patients, but important from a prognostic view. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=AZF" title="AZF">AZF</a>, <a href="https://publications.waset.org/abstracts/search?q=male%20infertility" title=" male infertility"> male infertility</a>, <a href="https://publications.waset.org/abstracts/search?q=microdeletions" title=" microdeletions"> microdeletions</a>, <a href="https://publications.waset.org/abstracts/search?q=Y%20chromosome" title=" Y chromosome"> Y chromosome</a> </p> <a href="https://publications.waset.org/abstracts/12638/analysis-of-the-azf-region-in-slovak-men-with-azoospermia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12638.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">373</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">141</span> Effect of Interaction between Different Concentrations of Colchicine, Time Duration and Two Verities of Crepis capillaris on Chromosome Polyploidy in vitro Culture</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mosleh%20M.%20S.%20Duhoky">Mosleh M. S. Duhoky</a>, <a href="https://publications.waset.org/abstracts/search?q=Payman%20A.%20A.%20Zibari"> Payman A. A. Zibari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> These experiments were conducted at Tissue Culture Laboratory/ Faculty of Agriculture and Forestry/ University of Duhok during the period from January 2011 to May 2013. The objectives of this study were to study the effects of interaction between three different factors on percentage of polyploidy of Crepis capillaris by using Tissue culture technology. Concerning the data it is obvious that shaking of Crepis capillaris with 2B chromosome with 0.15 mM for ten days inscribed a high percentage of polyploidy within most fifteen passages. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=crepis%20capillaris" title="crepis capillaris">crepis capillaris</a>, <a href="https://publications.waset.org/abstracts/search?q=2B%20chromosome" title=" 2B chromosome"> 2B chromosome</a>, <a href="https://publications.waset.org/abstracts/search?q=tissue%20culture" title=" tissue culture"> tissue culture</a>, <a href="https://publications.waset.org/abstracts/search?q=polyploidy" title=" polyploidy"> polyploidy</a> </p> <a href="https://publications.waset.org/abstracts/38730/effect-of-interaction-between-different-concentrations-of-colchicine-time-duration-and-two-verities-of-crepis-capillaris-on-chromosome-polyploidy-in-vitro-culture" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38730.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">351</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">140</span> An Improved Ant Colony Algorithm for Genome Rearrangements</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Essam%20Al%20Daoud">Essam Al Daoud</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Genome rearrangement is an important area in computational biology and bioinformatics. The basic problem in genome rearrangements is to compute the edit distance, i.e., the minimum number of operations needed to transform one genome into another. Unfortunately, unsigned genome rearrangement problem is NP-hard. In this study an improved ant colony optimization algorithm to approximate the edit distance is proposed. The main idea is to convert the unsigned permutation to signed permutation and evaluate the ants by using Kaplan algorithm. Two new operations are added to the standard ant colony algorithm: Replacing the worst ants by re-sampling the ants from a new probability distribution and applying the crossover operations on the best ants. The proposed algorithm is tested and compared with the improved breakpoint reversal sort algorithm by using three datasets. The results indicate that the proposed algorithm achieves better accuracy ratio than the previous methods. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ant%20colony%20algorithm" title="ant colony algorithm">ant colony algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=edit%20distance" title=" edit distance"> edit distance</a>, <a href="https://publications.waset.org/abstracts/search?q=genome%0D%0Abreakpoint" title=" genome breakpoint"> genome breakpoint</a>, <a href="https://publications.waset.org/abstracts/search?q=genome%20rearrangement" title=" genome rearrangement"> genome rearrangement</a>, <a href="https://publications.waset.org/abstracts/search?q=reversal%20sort" title=" reversal sort"> reversal sort</a> </p> <a href="https://publications.waset.org/abstracts/5601/an-improved-ant-colony-algorithm-for-genome-rearrangements" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/5601.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">344</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">139</span> A Report of 5-Months-Old Baby with Balanced Chromosomal Rearrangements along with Phenotypic Abnormalities</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohit%20Kumar">Mohit Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Beklashwar%20Salona"> Beklashwar Salona</a>, <a href="https://publications.waset.org/abstracts/search?q=Shiv%20Murti"> Shiv Murti</a>, <a href="https://publications.waset.org/abstracts/search?q=Mukesh%20Singh"> Mukesh Singh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We report here a case of five-months old male baby, born as second child of non-consanguineous parents with no considerable history of genetic abnormality which was referred to our cytogenetic laboratory for chromosomal analysis. Physical dysmorphic facial features including mongoloid face, cleft palate, simian crease, and developmental delay were observed. We present this case with unique balanced autosomal translocation of t(3;10)(p21;p13). The risk of phenotypic abnormalities based on de novo balanced translocation was estimated to be 7%. The association of balanced chromosomal rearrangement with Down syndrome features such as multiple congenital anomalies, facial dysmorphism and congenital heart anomalies are very rare in a 5-months old male child. Trisomy-21 is not uncommon in chromosomal abnormality with the birth defect and balanced translocations are frequently observed in patients with secondary infertility or recurrent spontaneous abortion (RSA). Two ml heparinized peripheral blood cells cultured in RPMI-1640 for 72 hours supplemented with 20% fetal bovine serum, phytohemagglutinin (PHA), and antibiotics were used for chromosomal analysis. A total 30 metaphases images were captured using Olympus-BX51 microscope and analyzed using Bio-view karyotyping software through GTG-banding (G bands by trypsin and Giemsa) according to International System for Human Cytogenetic Nomenclature 2016. The results showed balanced translocation between short arm of chromosome # 3 and short arm of chromosome # 10. The karyotype of the child was found to be 46,XY,t(3;10)(p21; p13). Chromosomal abnormalities are one of the major causes of birth defect in new born babies. Also, balanced translocations are frequently observed in patients with secondary infertility or recurrent spontaneous abortion. The index case presented with dysmorphic facial features and had a balanced translocation 46,XY,t(3;10)(p21;p13). This translocation with break points at (p21; p13) has not been reported in the literature in a child with facial dysmorphism. To the best of our knowledge, this is the first report of novel balanced translocation t(3;10) with break points in a child with dysmorphic features. We found balanced chromosomal translocation instead of any trisomy or unbalanced aberrations along with some phenotypic abnormalities. Therefore, we suggest that such novel balanced translocation with abnormal phenotype should be reported in order to enable the pathologist, pediatrician, and gynecologist to have a better insight into the intricacies of chromosomal abnormalities and their associated phenotypic features. We hypothesized that dysmorphic features as seen in this case may be the result of change in the pattern of genes located at the breakpoint area in balanced translocations or may be due to deletion or mutation of genes located on the p-arm of chromosome # 3 and p-arm of chromosome # 10. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=balanced%20translocation" title="balanced translocation">balanced translocation</a>, <a href="https://publications.waset.org/abstracts/search?q=karyotyping" title=" karyotyping"> karyotyping</a>, <a href="https://publications.waset.org/abstracts/search?q=phenotypic%20abnormalities" title=" phenotypic abnormalities"> phenotypic abnormalities</a>, <a href="https://publications.waset.org/abstracts/search?q=facial%20dimorphisms" title=" facial dimorphisms"> facial dimorphisms</a> </p> <a href="https://publications.waset.org/abstracts/77373/a-report-of-5-months-old-baby-with-balanced-chromosomal-rearrangements-along-with-phenotypic-abnormalities" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77373.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">208</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">138</span> Relating Symptoms with Protein Production Abnormality in Patients with Down Syndrome</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ruolan%20Zhou">Ruolan Zhou</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Trisomy of human chromosome 21 is the primary cause of Down Syndrome (DS), and this genetic disease has significantly burdened families and countries, causing great controversy. To address this problem, the research takes an approach in exploring the relationship between genetic abnormality and this disease's symptoms, adopting several techniques, including data analysis and enrichment analysis. It also explores open-source websites, such as NCBI, DAVID, SOURCE, STRING, as well as UCSC, to complement its result. This research has analyzed the variety of genes on human chromosome 21 with simple coding, and by using analysis, it has specified the protein-coding genes, their function, and their location. By using enrichment analysis, this paper has found the abundance of keratin production-related coding-proteins on human chromosome 21. By adopting past researches, this research has attempted to disclose the relationship between trisomy of human chromosome 21 and keratin production abnormality, which might be the reason for common diseases in patients with Down Syndrome. At last, by addressing the advantage and insufficiency of this research, the discussion has provided specific directions for future research. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Down%20Syndrome" title="Down Syndrome">Down Syndrome</a>, <a href="https://publications.waset.org/abstracts/search?q=protein%20production" title=" protein production"> protein production</a>, <a href="https://publications.waset.org/abstracts/search?q=genome" title=" genome"> genome</a>, <a href="https://publications.waset.org/abstracts/search?q=enrichment%20analysis" title=" enrichment analysis"> enrichment analysis</a> </p> <a href="https://publications.waset.org/abstracts/132358/relating-symptoms-with-protein-production-abnormality-in-patients-with-down-syndrome" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/132358.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">126</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">137</span> Doubled Haploid Production in Wheat Using Imperata cylindrica Mediated Chromosome Elimination Technique</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Madhu%20Patial">Madhu Patial</a>, <a href="https://publications.waset.org/abstracts/search?q=Dharam%20Pal"> Dharam Pal</a>, <a href="https://publications.waset.org/abstracts/search?q=Jagdish%20Kumar"> Jagdish Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20K.%20Chaudhary"> H. K. Chaudhary</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Doubled haploid breeding serves as a useful technique in wheat improvement by providing instant and complete homozygosity. Of the various techniques employed for haploid production chromosome elimination has a large scale practical application in wheat improvement. Barclay (1975) initiated the technique in wheat by crossing wheat variety Chinese spring with Hordeum bulbosum, but due to presence of the dominant crossability inhibitor genes Kr7 and Kr2 in many wheat varieties, the technique was however genotypic specific. The discovery of wheat X maize system of haploid production being genotype non-specific is quite successful but still maize needs to be grown in greenhouse to coincide flowering with wheat crop. Recently, wheat X Imperate cylindrica has been identified as a new chromosome mediated DH approach for efficient haploid induction. An experiment to use this technique in wheat was set up by crossing six F1s and two three way F1s with Imperata cylindrica. The data was recorded for the three component traits of haploid induction viz., seed formation, embryo formation and regeneration frequency. Variation among wheat F1s was observed and higher frequency for all the traits were recorded in cross HD 2997/2*FL-8/DONSK-POLL and KLE/BER/2*FL-8/DONSK-POLL. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wheat" title="wheat">wheat</a>, <a href="https://publications.waset.org/abstracts/search?q=haploid" title=" haploid"> haploid</a>, <a href="https://publications.waset.org/abstracts/search?q=imperata%20cylindrica" title=" imperata cylindrica"> imperata cylindrica</a>, <a href="https://publications.waset.org/abstracts/search?q=chromosome%20elimination%20technique" title=" chromosome elimination technique"> chromosome elimination technique</a> </p> <a href="https://publications.waset.org/abstracts/24869/doubled-haploid-production-in-wheat-using-imperata-cylindrica-mediated-chromosome-elimination-technique" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24869.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">424</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">136</span> QSAR Study and Haptotropic Rearrangement in Estradiol Derivatives</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Abd%20Esselem%20Dems">Mohamed Abd Esselem Dems</a>, <a href="https://publications.waset.org/abstracts/search?q=Souhila%20Laib"> Souhila Laib</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadjia%20Latelli"> Nadjia Latelli</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadia%20Ouddai"> Nadia Ouddai</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this work, we have developed QSAR model for Relative Binding Affinity (RBA) of a large diverse set of estradiol among these derivatives, the organometallic derivatives. By dividing the dataset into a training set of 24 compounds and a test set of 6 compounds. The DFT method was used to calculate quantum chemical descriptors and physicochemical descriptors (MR and MLOGP) were performed using E-Dragon. All the validations indicated that the QSAR model built was robust and satisfactory (R2 = 90.12, Q2LOO = 86.61, RMSE = 0.272, F = 60.6473, Q2ext =86.07). We have therefore apply this model to predict the RBA, for two isomers β and α wherein Mn(CO)3 complex with the aromatic ring of estradiol, and the two isomers show little appreciation for the estrogenic receptor (RBAβ = 1.812 and RBAα = 1.741). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=DFT" title="DFT">DFT</a>, <a href="https://publications.waset.org/abstracts/search?q=estradiol" title=" estradiol"> estradiol</a>, <a href="https://publications.waset.org/abstracts/search?q=haptotropic%20rearrangement" title=" haptotropic rearrangement"> haptotropic rearrangement</a>, <a href="https://publications.waset.org/abstracts/search?q=QSAR" title=" QSAR"> QSAR</a>, <a href="https://publications.waset.org/abstracts/search?q=relative%20binding%20affinity" title=" relative binding affinity"> relative binding affinity</a> </p> <a href="https://publications.waset.org/abstracts/30778/qsar-study-and-haptotropic-rearrangement-in-estradiol-derivatives" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30778.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">294</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">135</span> Medical Neural Classifier Based on Improved Genetic Algorithm</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fadzil%20Ahmad">Fadzil Ahmad</a>, <a href="https://publications.waset.org/abstracts/search?q=Noor%20Ashidi%20Mat%20Isa"> Noor Ashidi Mat Isa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study introduces an improved genetic algorithm procedure that focuses search around near optimal solution corresponded to a group of elite chromosome. This is achieved through a novel crossover technique known as Segmented Multi Chromosome Crossover. It preserves the highly important information contained in a gene segment of elite chromosome and allows an offspring to carry information from gene segment of multiple chromosomes. In this way the algorithm has better possibility to effectively explore the solution space. The improved GA is applied for the automatic and simultaneous parameter optimization and feature selection of artificial neural network in pattern recognition of medical problem, the cancer and diabetes disease. The experimental result shows that the average classification accuracy of the cancer and diabetes dataset has improved by 0.1% and 0.3% respectively using the new algorithm. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=genetic%20algorithm" title="genetic algorithm">genetic algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=artificial%20neural%20network" title=" artificial neural network"> artificial neural network</a>, <a href="https://publications.waset.org/abstracts/search?q=pattern%20clasification" title=" pattern clasification"> pattern clasification</a>, <a href="https://publications.waset.org/abstracts/search?q=classification%20accuracy" title=" classification accuracy"> classification accuracy</a> </p> <a href="https://publications.waset.org/abstracts/14231/medical-neural-classifier-based-on-improved-genetic-algorithm" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14231.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">474</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">134</span> Synthesis of Functionalized-2-Aryl-2, 3-Dihydroquinoline-4(1H)-Ones via Fries Rearrangement of Azetidin-2-Ones</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Parvesh%20Singh">Parvesh Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Vipan%20Kumar"> Vipan Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Vishu%20Mehra"> Vishu Mehra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Quinoline-4-ones represent an important class of heterocyclic scaffolds that have attracted significant interest due to their various biological and pharmacological activities. This heterocyclic unit also constitutes an integral component in drugs used for the treatment of neurodegenerative diseases, sleep disorders and in antibiotics viz. norfloxacin and ciprofloxacin. The synthetic accessibility and possibility of fictionalization at varied positions in quinoline-4-ones exemplifies an elegant platform for the designing of combinatorial libraries of functionally enriched scaffolds with a range of pharmacological profles. They are also considered to be attractive precursors for the synthesis of medicinally imperative molecules such as non-steroidal androgen receptor antagonists, antimalarial drug Chloroquine and martinellines with antibacterial activity. 2-Aryl-2,3-dihydroquinolin-4(1H)-ones are present in many natural and non-natural compounds and are considered to be the aza-analogs of favanones. The β-lactam class of antibiotics is generally recognized to be a cornerstone of human health care due to the unparalleled clinical efficacy and safety of this type of antibacterial compound. In addition to their biological relevance as potential antibiotics, β-lactams have also acquired a prominent place in organic chemistry as synthons and provide highly efficient routes to a variety of non-protein amino acids, such as oligopeptides, peptidomimetics, nitrogen-heterocycles, as well as biologically active natural and unnatural products of medicinal interest such as indolizidine alkaloids, paclitaxel, docetaxel, taxoids, cyptophycins, lankacidins, etc. A straight forward route toward the synthesis of quinoline-4-ones via the triflic acid assisted Fries rearrangement of N-aryl-βlactams has been reported by Tepe and co-workers. The ring expansion observed in this case was solely attributed to the inherent ring strain in β-lactam ring because -lactam failed to undergo rearrangement under reaction conditions. Theabovementioned protocol has been recently extended by our group for the synthesis of benzo[b]-azocinon-6-ones via a tandem Michael addition–Fries rearrangement of sorbyl anilides as well as for the single-pot synthesis of 2-aryl-quinolin-4(3H)-ones through the Fries rearrangement of 3-dienyl-βlactams. In continuation with our synthetic endeavours with the β-lactam ring and in view of the lack of convenient approaches for the synthesis of C-3 functionalized quinolin-4(1H)-ones, the present work describes the single-pot synthesis of C-3 functionalized quinolin-4(1H)-ones via the trific acid promoted Fries rearrangement of C-3 vinyl/isopropenyl substituted β-lactams. In addition, DFT calculations and MD simulations were performed to investigate the stability profles of synthetic compounds. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dihydroquinoline" title="dihydroquinoline">dihydroquinoline</a>, <a href="https://publications.waset.org/abstracts/search?q=fries%20rearrangement" title=" fries rearrangement"> fries rearrangement</a>, <a href="https://publications.waset.org/abstracts/search?q=azetidin-2-ones" title=" azetidin-2-ones"> azetidin-2-ones</a>, <a href="https://publications.waset.org/abstracts/search?q=quinoline-4-ones" title=" quinoline-4-ones "> quinoline-4-ones </a> </p> <a href="https://publications.waset.org/abstracts/76501/synthesis-of-functionalized-2-aryl-2-3-dihydroquinoline-41h-ones-via-fries-rearrangement-of-azetidin-2-ones" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/76501.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">250</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">133</span> A Case Study of Misinterpretation of Results in Forensic DNA Cases Due to Expression of Y- Chromosome in Females</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Garima%20Chaudhary">Garima Chaudhary</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The gender of an individual in forensic DNA analysis is normally accessed by using the STR multiplexes with the incorporated gender based marker amelogenin or in other words by presence or absence of Y-Chromosome, but it may not be true in all the cases. We hereby report an interesting case of a phenotypic female carrying a male karyotype (46XY). In the alleged murder case, the deceased female with XY genotype was noticed. The expression of 18 Y-linked genes was studied to measure the extent of expression. Expression at 4 loci was observed that might have caused the misinterpretation in forensic casework. This clinical situation of the deceased in this case was diagnosed as testicular feminization syndrome, which characterize a female phenotype with a male karyotype (46, XY). Most of these cases have SRY (testis determining factor). The genetic explanation of this phenomenon is not very clear. Here, we are discussing the impact of such situations of genetic discrepancy in forensic interpretation of results. In the presented murder case of a phenotypic female, sexual assault was also suspected. For confirmation vaginal swabs and micro slides were also sent to us for DNA examination. After DNA analysis using STR markers, Y-chromosome was detected in the samples which supporting the suspicion of sexual assault before murder. When the reference blood sample of the deceased was analyzed, it was found to be case of testicular feminization syndrome. Interesting inferences were made from the results obtained. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=DNA%20profiling" title="DNA profiling">DNA profiling</a>, <a href="https://publications.waset.org/abstracts/search?q=forensic%20case%20study" title=" forensic case study"> forensic case study</a>, <a href="https://publications.waset.org/abstracts/search?q=Y%20chromosome" title=" Y chromosome"> Y chromosome</a>, <a href="https://publications.waset.org/abstracts/search?q=females" title=" females"> females</a> </p> <a href="https://publications.waset.org/abstracts/74256/a-case-study-of-misinterpretation-of-results-in-forensic-dna-cases-due-to-expression-of-y-chromosome-in-females" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74256.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">228</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">132</span> Principles for the Realistic Determination of the in-situ Concrete Compressive Strength under Consideration of Rearrangement Effects</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rabea%20Sefrin">Rabea Sefrin</a>, <a href="https://publications.waset.org/abstracts/search?q=Christian%20Glock"> Christian Glock</a>, <a href="https://publications.waset.org/abstracts/search?q=Juergen%20Schnell"> Juergen Schnell</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The preservation of existing structures is of great economic interest because it contributes to higher sustainability and resource conservation. In the case of existing buildings, in addition to repair and maintenance, modernization or reconstruction works often take place in the course of adjustments or changes in use. Since the structural framework and the associated load level are usually changed in the course of the structural measures, the stability of the structure must be verified in accordance with the currently valid regulations. The concrete compressive strength of the existing structures concrete and the derived mechanical parameters are of central importance for the recalculation and verification. However, the compressive strength of the existing concrete is usually set comparatively low and thus underestimated. The reasons for this are too small numbers, and large scatter of material properties of the drill cores, which are used for the experimental determination of the design value of the compressive strength. Within a structural component, the load is usually transferred over the area with higher stiffness and consequently with higher compressive strength. Therefore, existing strength variations within a component only play a subordinate role due to rearrangement effects. This paper deals with the experimental and numerical determination of such rearrangement effects in order to calculate the concrete compressive strength of existing structures more realistic and economical. The influence of individual parameters such as the specimen geometry (prism or cylinder) or the coefficient of variation of the concrete compressive strength is analyzed in experimental small-part tests. The coefficients of variation commonly used in practice are adjusted by dividing the test specimens into several layers consisting of different concretes, which are monolithically connected to each other. From each combination, a sufficient number of the test specimen is produced and tested to enable evaluation on a statistical basis. Based on the experimental tests, FE simulations are carried out to validate the test results. In the frame of a subsequent parameter study, a large number of combinations is considered, which had not been investigated in the experimental tests yet. Thus, the influence of individual parameters on the size and characteristic of the rearrangement effect is determined and described more detailed. Based on the parameter study and the experimental results, a calculation model for a more realistic determination of the in situ concrete compressive strength is developed and presented. By considering rearrangement effects in concrete during recalculation, a higher number of existing structures can be maintained without structural measures. The preservation of existing structures is not only decisive from an economic, sustainable, and resource-saving point of view but also represents an added value for cultural and social aspects. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=existing%20structures" title="existing structures">existing structures</a>, <a href="https://publications.waset.org/abstracts/search?q=in-situ%20concrete%20compressive%20strength" title=" in-situ concrete compressive strength"> in-situ concrete compressive strength</a>, <a href="https://publications.waset.org/abstracts/search?q=rearrangement%20effects" title=" rearrangement effects"> rearrangement effects</a>, <a href="https://publications.waset.org/abstracts/search?q=recalculation" title=" recalculation"> recalculation</a> </p> <a href="https://publications.waset.org/abstracts/111817/principles-for-the-realistic-determination-of-the-in-situ-concrete-compressive-strength-under-consideration-of-rearrangement-effects" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/111817.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">118</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">131</span> BeamGA Median: A Hybrid Heuristic Search Approach</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ghada%20Badr">Ghada Badr</a>, <a href="https://publications.waset.org/abstracts/search?q=Manar%20Hosny"> Manar Hosny</a>, <a href="https://publications.waset.org/abstracts/search?q=Nuha%20Bintayyash"> Nuha Bintayyash</a>, <a href="https://publications.waset.org/abstracts/search?q=Eman%20Albilali"> Eman Albilali</a>, <a href="https://publications.waset.org/abstracts/search?q=Souad%20Larabi%20Marie-Sainte"> Souad Larabi Marie-Sainte</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The median problem is significantly applied to derive the most reasonable rearrangement phylogenetic tree for many species. More specifically, the problem is concerned with finding a permutation that minimizes the sum of distances between itself and a set of three signed permutations. Genomes with equal number of genes but different order can be represented as permutations. In this paper, an algorithm, namely BeamGA median, is proposed that combines a heuristic search approach (local beam) as an initialization step to generate a number of solutions, and then a Genetic Algorithm (GA) is applied in order to refine the solutions, aiming to achieve a better median with the smallest possible reversal distance from the three original permutations. In this approach, any genome rearrangement distance can be applied. In this paper, we use the reversal distance. To the best of our knowledge, the proposed approach was not applied before for solving the median problem. Our approach considers true biological evolution scenario by applying the concept of common intervals during the GA optimization process. This allows us to imitate a true biological behavior and enhance genetic approach time convergence. We were able to handle permutations with a large number of genes, within an acceptable time performance and with same or better accuracy as compared to existing algorithms. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=median%20problem" title="median problem">median problem</a>, <a href="https://publications.waset.org/abstracts/search?q=phylogenetic%20tree" title=" phylogenetic tree"> phylogenetic tree</a>, <a href="https://publications.waset.org/abstracts/search?q=permutation" title=" permutation"> permutation</a>, <a href="https://publications.waset.org/abstracts/search?q=genetic%20algorithm" title=" genetic algorithm"> genetic algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=beam%20search" title=" beam search"> beam search</a>, <a href="https://publications.waset.org/abstracts/search?q=genome%20rearrangement%20distance" title=" genome rearrangement distance"> genome rearrangement distance</a> </p> <a href="https://publications.waset.org/abstracts/73026/beamga-median-a-hybrid-heuristic-search-approach" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/73026.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">265</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">130</span> Karyotyping the Date Palm (Phoenix dactylifera L.)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdullah%20M.%20Alzahrani">Abdullah M. Alzahrani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The karyotypes of Khalas (KH), Sukkary (SK), Sheeshi (SS), Shibeebi (SB) and Sillije (SJ) date palm cultivars were investigated. Data showed no variation in chromosome number, 2n = 36, 34 autosomes in addition to XX in females and XY in males. Mean autosomes length ranged from 3.85-9.93 μm and 3.71-2.73 μm for X and Y chromosomes, respectively. The formula of female date palm karyotype was 8m + 4sm +2st + 4t, and submedian Y chromosome. Relative chromosome length ranged from 3.3- 9.38 μm. SS cultivar showed high asymmetry levels by scoring low values of Syi (45.51), TF (42.8) and high values for A1 (0.53), A (0.41) and AI (0.29). Syi developed an inverse relation with A1 and A while A exhibited a direct correlation with A1. Cultivars SK, SB and SJ score medium values of Syi, A1, AI and A. KH cultivar exhibited high symmetry by scoring highest values of Syi (53.68), TF (51.81) and lowest values of A1 (0.44), A (0.34) and AI (0.18). Higher DI value was obtained in SB cultivar (1.34) followed by SJ (1.15) and low DI scores of 0.99, 0.86 and 0.71 were detected in KH, SS and SK, respectively. Stebbins classification assorted SS as 3B and the other cultivars as 2B, insuring the evolution and asymmetry of SS compared to the other karyotypes. Scatter diagram of Syi-A1 couple has the advantage of revealing high degree of sensitivity to present karyotype interrelationships, followed by AI-A and CVCL-CVCI couples. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Karyotype" title="Karyotype">Karyotype</a>, <a href="https://publications.waset.org/abstracts/search?q=date%20palm" title=" date palm"> date palm</a>, <a href="https://publications.waset.org/abstracts/search?q=Khalas" title=" Khalas"> Khalas</a>, <a href="https://publications.waset.org/abstracts/search?q=Sukkary" title=" Sukkary"> Sukkary</a>, <a href="https://publications.waset.org/abstracts/search?q=Sheeshi" title=" Sheeshi"> Sheeshi</a> </p> <a href="https://publications.waset.org/abstracts/40557/karyotyping-the-date-palm-phoenix-dactylifera-l" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/40557.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">369</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">129</span> High Expression Levels and Amplification of rRNA Genes in a Mentally Retarded Child with 13p+: A Familial Case Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Irina%20S.%20Kolesnikova">Irina S. Kolesnikova</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexander%20A.%20Dolskiy"> Alexander A. Dolskiy</a>, <a href="https://publications.waset.org/abstracts/search?q=Natalya%20A.%20Lemskaya"> Natalya A. Lemskaya</a>, <a href="https://publications.waset.org/abstracts/search?q=Yulia%20V.%20Maksimova"> Yulia V. Maksimova</a>, <a href="https://publications.waset.org/abstracts/search?q=Asia%20R.%20Shorina"> Asia R. Shorina</a>, <a href="https://publications.waset.org/abstracts/search?q=Alena%20S.%20Telepova"> Alena S. Telepova</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexander%20S.%20Graphodatsky"> Alexander S. Graphodatsky</a>, <a href="https://publications.waset.org/abstracts/search?q=Dmitry%20V.%20Yudkin"> Dmitry V. Yudkin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A cytogenetic and molecular genetic study of the family with a male child who had mental retardation and autistic features revealed an abnormal chromosome 13 bearing an enlarged p-arm with amplified ribosomal DNA (rDNA) in a boy and his father. Cytogenetic analysis using standard G-banding and FISH with labeled rDNA probes revealed an abnormal chromosome 13 with an enlarged p-arms due to rDNA amplification in a male child, who had clinically confirmed mental retardation and an autistic behavior. This chromosome is evidently inherited from the father, who has morphologically the same chromosome, but is healthy. The karyotype of the mother was normal. Ag-NOR staining showed brightly stained large whole-p-arm nucleolus organizer regions (NORs) in a child and normal-sized NORs in his father with 13p+-NOR-amount mosaicism. qRT-PCR with specific primers showed highly increased levels of 18S, 28S and 5,8 S ribosomal RNA (rRNA) in the patient’s blood samples compared to a normal healthy control donor. Both patient’s father and mother had no elevated levels of rRNAs expression. Thus, in this case, rRNA level seems to correlate with mental retardation in familial individuals with 13p+. Our findings of rRNA overexpression in a patient with mental retardation and his parents may show a possible link between the karyotype (p-arm enlargement due to rDNA amplification), rDNA functionality (rRNA overexpression), functional changes in the brain and mental retardation. The study is supported by Russian Science Foundation Grant 15-15-10001. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mental%20retardation" title="mental retardation">mental retardation</a>, <a href="https://publications.waset.org/abstracts/search?q=ribosomal%20DNA%E2%80%93rDNA" title=" ribosomal DNA–rDNA"> ribosomal DNA–rDNA</a>, <a href="https://publications.waset.org/abstracts/search?q=ribosomal%20RNA%E2%80%93rRNA" title=" ribosomal RNA–rRNA"> ribosomal RNA–rRNA</a>, <a href="https://publications.waset.org/abstracts/search?q=nucleolus%20organizer%20region%E2%80%93NOR" title=" nucleolus organizer region–NOR"> nucleolus organizer region–NOR</a>, <a href="https://publications.waset.org/abstracts/search?q=chromosome%2013" title=" chromosome 13"> chromosome 13</a> </p> <a href="https://publications.waset.org/abstracts/60315/high-expression-levels-and-amplification-of-rrna-genes-in-a-mentally-retarded-child-with-13p-a-familial-case-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60315.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">262</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">128</span> The Usefulness of Premature Chromosome Condensation Scoring Module in Cell Response to Ionizing Radiation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20Rawoj%C4%87">K. Rawojć</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Miszczyk"> J. Miszczyk</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Mo%C5%BCd%C5%BCe%C5%84"> A. Możdżeń</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Panek"> A. Panek</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Swako%C5%84"> J. Swakoń</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Rydygier"> M. Rydygier</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Due to the mitotic delay, poor mitotic index and disappearance of lymphocytes from peripheral blood circulation, assessing the DNA damage after high dose exposure is less effective. Conventional chromosome aberration analysis or cytokinesis-blocked micronucleus assay do not provide an accurate dose estimation or radiosensitivity prediction in doses higher than 6.0 Gy. For this reason, there is a need to establish reliable methods allowing analysis of biological effects after exposure in high dose range i.e., during particle radiotherapy. Lately, Premature Chromosome Condensation (PCC) has become an important method in high dose biodosimetry and a promising treatment modality to cancer patients. The aim of the study was to evaluate the usefulness of drug-induced PCC scoring procedure in an experimental mode, where 100 G2/M cells were analyzed in different dose ranges. To test the consistency of obtained results, scoring was performed by 3 independent persons in the same mode and following identical scoring criteria. Whole-body exposure was simulated in an in vitro experiment by irradiating whole blood collected from healthy donors with 60 MeV protons and 250 keV X-rays, in the range of 4.0 – 20.0 Gy. Drug-induced PCC assay was performed on human peripheral blood lymphocytes (HPBL) isolated after in vitro exposure. Cells were cultured for 48 hours with PHA. Then to achieve premature condensation, calyculin A was added. After Giemsa staining, chromosome spreads were photographed and manually analyzed by scorers. The dose-effect curves were derived by counting the excess chromosome fragments. The results indicated adequate dose estimates for the whole-body exposure scenario in the high dose range for both studied types of radiation. Moreover, compared results revealed no significant differences between scores, which has an important meaning in reducing the analysis time. These investigations were conducted as a part of an extended examination of 60 MeV protons from AIC-144 isochronous cyclotron, at the Institute of Nuclear Physics in Kraków, Poland (IFJ PAN) by cytogenetic and molecular methods and were partially supported by grant DEC-2013/09/D/NZ7/00324 from the National Science Centre, Poland. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cell%20response%20to%20radiation%20exposure" title="cell response to radiation exposure">cell response to radiation exposure</a>, <a href="https://publications.waset.org/abstracts/search?q=drug%20induced%20premature%20chromosome%20condensation" title=" drug induced premature chromosome condensation"> drug induced premature chromosome condensation</a>, <a href="https://publications.waset.org/abstracts/search?q=premature%20chromosome%20condensation%20procedure" title=" premature chromosome condensation procedure"> premature chromosome condensation procedure</a>, <a href="https://publications.waset.org/abstracts/search?q=proton%20therapy" title=" proton therapy"> proton therapy</a> </p> <a href="https://publications.waset.org/abstracts/45763/the-usefulness-of-premature-chromosome-condensation-scoring-module-in-cell-response-to-ionizing-radiation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45763.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">352</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">127</span> Understanding Chromosome Movement in Starfish Oocytes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bryony%20Davies">Bryony Davies</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Many cell and tissue culture practices ignore the effects of gravity on cell biology, and little is known about how cell components may move in response to gravitational forces. Starfish oocytes provide an excellent model for interrogating the movement of cell components due to their unusually large size, ease of handling, and high transparency. Chromosomes from starfish oocytes can be visualised by microinjection of the histone-H2B-mCherry plasmid into the oocytes. The movement of the chromosomes can then be tracked by live-cell fluorescence microscopy. The results from experiments using these methods suggest that there is a replicable downward movement of centrally located chromosomes at a median velocity of 0.39 μm/min. Chromosomes nearer the nuclear boundary showed more restricted movement. Chromosome density and shape could also be altered by microinjection of restriction enzymes, primarily Alu1, before imaging. This was found to alter the speed of chromosome movement, with chromosomes from Alu1-injected nuclei showing a median downward velocity of 0.60 μm/min. Overall, these results suggest that there is a non-negligible movement of chromosomes in response to gravitational forces and that this movement can be altered by enzyme activity. Future directions based on these results could interrogate if this observed downward movement extends to other cell components and to other cell types. Additionally, it may be important to understand whether gravitational orientation and vertical positioning of cell components alter cell behaviour. The findings here may have implications for current cell culture practices, which do not replicate cell orientations or external forces experienced in vivo. It is possible that a failure to account for gravitational forces in 2D cell culture alters experimental results and the accuracy of conclusions drawn from them. Understanding possible behavioural changes in cells due to the effects of gravity would therefore be beneficial. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=starfish" title="starfish">starfish</a>, <a href="https://publications.waset.org/abstracts/search?q=oocytes" title=" oocytes"> oocytes</a>, <a href="https://publications.waset.org/abstracts/search?q=live-cell%20imaging" title=" live-cell imaging"> live-cell imaging</a>, <a href="https://publications.waset.org/abstracts/search?q=microinjection" title=" microinjection"> microinjection</a>, <a href="https://publications.waset.org/abstracts/search?q=chromosome%20dynamics" title=" chromosome dynamics"> chromosome dynamics</a> </p> <a href="https://publications.waset.org/abstracts/158323/understanding-chromosome-movement-in-starfish-oocytes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158323.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">104</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">126</span> From Primer Generation to Chromosome Identification: A Primer Generation Genotyping Method for Bacterial Identification and Typing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wisam%20H.%20Benamer">Wisam H. Benamer</a>, <a href="https://publications.waset.org/abstracts/search?q=Ehab%20A.%20Elfallah"> Ehab A. Elfallah</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20A.%20Elshaari"> Mohamed A. Elshaari</a>, <a href="https://publications.waset.org/abstracts/search?q=Farag%20A.%20Elshaari"> Farag A. Elshaari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A challenge for laboratories is to provide bacterial identification and antibiotic sensitivity results within a short time. Hence, advancement in the required technology is desirable to improve timing, accuracy and quality. Even with the current advances in methods used for both phenotypic and genotypic identification of bacteria the need is there to develop method(s) that enhance the outcome of bacteriology laboratories in accuracy and time. The hypothesis introduced here is based on the assumption that the chromosome of any bacteria contains unique sequences that can be used for its identification and typing. The outcome of a pilot study designed to test this hypothesis is reported in this manuscript. Methods: The complete chromosome sequences of several bacterial species were downloaded to use as search targets for unique sequences. Visual basic and SQL server (2014) were used to generate a complete set of 18-base long primers, a process started with reverse translation of randomly chosen 6 amino acids to limit the number of the generated primers. In addition, the software used to scan the downloaded chromosomes using the generated primers for similarities was designed, and the resulting hits were classified according to the number of similar chromosomal sequences, i.e., unique or otherwise. Results: All primers that had identical/similar sequences in the selected genome sequence(s) were classified according to the number of hits in the chromosomes search. Those that were identical to a single site on a single bacterial chromosome were referred to as unique. On the other hand, most generated primers sequences were identical to multiple sites on a single or multiple chromosomes. Following scanning, the generated primers were classified based on ability to differentiate between medically important bacterial and the initial results looks promising. Conclusion: A simple strategy that started by generating primers was introduced; the primers were used to screen bacterial genomes for match. Primer(s) that were uniquely identical to specific DNA sequence on a specific bacterial chromosome were selected. The identified unique sequence can be used in different molecular diagnostic techniques, possibly to identify bacteria. In addition, a single primer that can identify multiple sites in a single chromosome can be exploited for region or genome identification. Although genomes sequences draft of isolates of organism DNA enable high throughput primer design using alignment strategy, and this enhances diagnostic performance in comparison to traditional molecular assays. In this method the generated primers can be used to identify an organism before the draft sequence is completed. In addition, the generated primers can be used to build a bank for easy access of the primers that can be used to identify bacteria. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bacteria%20chromosome" title="bacteria chromosome">bacteria chromosome</a>, <a href="https://publications.waset.org/abstracts/search?q=bacterial%20identification" title=" bacterial identification"> bacterial identification</a>, <a href="https://publications.waset.org/abstracts/search?q=sequence" title=" sequence"> sequence</a>, <a href="https://publications.waset.org/abstracts/search?q=primer%20generation" title=" primer generation"> primer generation</a> </p> <a href="https://publications.waset.org/abstracts/57860/from-primer-generation-to-chromosome-identification-a-primer-generation-genotyping-method-for-bacterial-identification-and-typing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57860.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">193</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">125</span> Functional Gene Expression in Human Cells Using Linear Vectors Derived from Bacteriophage N15 Processing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kumaran%20Narayanan">Kumaran Narayanan</a>, <a href="https://publications.waset.org/abstracts/search?q=Pei-Sheng%20Liew"> Pei-Sheng Liew</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper adapts the bacteriophage N15 protelomerase enzyme to assemble linear chromosomes as vectors for gene expression in human cells. Phage N15 has the unique ability to replicate as a linear plasmid with telomeres in E. coli during its prophage stage of life-cycle. The virus-encoded protelomerase enzyme cuts its circular genome and caps its ends to form hairpin telomeres, resulting in a linear human-chromosome-like structure in E. coli. In mammalian cells, however, no enzyme with TelN-like activities has been found. In this work, we show for the first-time transfer of the protelomerase from phage into human and mouse cells and demonstrate recapitulation of its activity in these hosts. The function of this enzyme is assayed by demonstrating cleavage of its target DNA, followed by detecting telomere formation based on its resistance to recBCD enzyme digestion. We show protelomerase expression persists for at least 60 days, which indicates limited silencing of its expression. Next, we show that an intact human β-globin gene delivered on this linear chromosome accurately retains its expression in the human cellular environment for at least 60 hours, demonstrating its stability and potential as a vector. These results demonstrate that the N15 protelomerse is able to function in mammalian cells to cut and heal DNA to create telomeres, which provides a new tool for creating novel structures by DNA resolution in these hosts. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chromosome" title="chromosome">chromosome</a>, <a href="https://publications.waset.org/abstracts/search?q=beta-globin" title=" beta-globin"> beta-globin</a>, <a href="https://publications.waset.org/abstracts/search?q=DNA" title=" DNA"> DNA</a>, <a href="https://publications.waset.org/abstracts/search?q=gene%20expression" title=" gene expression"> gene expression</a>, <a href="https://publications.waset.org/abstracts/search?q=linear%20vector" title=" linear vector"> linear vector</a> </p> <a href="https://publications.waset.org/abstracts/111231/functional-gene-expression-in-human-cells-using-linear-vectors-derived-from-bacteriophage-n15-processing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/111231.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">192</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">124</span> A Novel Chicken W Chromosome Specific Tandem Repeat</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alsu%20F.%20Saifitdinova">Alsu F. Saifitdinova</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexey%20S.%20Komissarov"> Alexey S. Komissarov</a>, <a href="https://publications.waset.org/abstracts/search?q=Svetlana%20A.%20Galkina"> Svetlana A. Galkina</a>, <a href="https://publications.waset.org/abstracts/search?q=Elena%20I.%20Koshel"> Elena I. Koshel</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20M.%20Kulak"> Maria M. Kulak</a>, <a href="https://publications.waset.org/abstracts/search?q=Stephen%20J.%20O%27Brien"> Stephen J. O'Brien</a>, <a href="https://publications.waset.org/abstracts/search?q=Elena%20R.%20Gaginskaya"> Elena R. Gaginskaya</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The mystery of sex determination is one of the most ancient and still not solved until the end so far. In many species, sex determination is genetic and often accompanied by the presence of dimorphic sex chromosomes in the karyotype. Genomic sequencing gave the information about the gene content of sex chromosomes which allowed to reveal their origin from ordinary autosomes and to trace their evolutionary history. Female-specific W chromosome in birds as well as mammalian male-specific Y chromosome is characterized by the degeneration of gene content and the accumulation of repetitive DNA. Tandem repeats complicate the analysis of genomic data. Despite the best efforts chicken W chromosome assembly includes only 1.2 Mb from expected 55 Mb. Supplementing the information on the sex chromosome composition not only helps to complete the assembly of genomes but also moves us in the direction of understanding of the sex-determination systems evolution. A whole-genome survey to the assembly Gallus_gallus WASHUC 2.60 was applied for repeats search in assembled genome and performed search and assembly of high copy number repeats in unassembled reads of SRR867748 short reads datasets. For cytogenetic analysis conventional methods of fluorescent in situ hybridization was used for previously cloned W specific satellites and specifically designed directly labeled synthetic oligonucleotide DNA probe was used for bioinformatically identified repetitive sequence. Hybridization was performed with mitotic chicken chromosomes and manually isolated giant meiotic lampbrush chromosomes from growing oocytes. A novel chicken W specific satellite (GGAAA)n which is not co-localizes with any previously described classes of W specific repeats was identified and mapped with high resolution. In the composition of autosomes this repeat units was found as a part of upstream regions of gonad specific protein coding sequences. These findings may contribute to the understanding of the role of tandem repeats in sex specific differentiation regulation in birds and sex chromosome evolution. This work was supported by the postdoctoral fellowships from St. Petersburg State University (#1.50.1623.2013 and #1.50.1043.2014), the grant for Leading Scientific Schools (#3553.2014.4) and the grant from Russian foundation for basic researches (#15-04-05684). The equipment and software of Research Resource Center “Chromas” and Theodosius Dobzhansky Center for Genome Bioinformatics of Saint Petersburg State University were used. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=birds" title="birds">birds</a>, <a href="https://publications.waset.org/abstracts/search?q=lampbrush%20chromosomes" title=" lampbrush chromosomes"> lampbrush chromosomes</a>, <a href="https://publications.waset.org/abstracts/search?q=sex%20chromosomes" title=" sex chromosomes"> sex chromosomes</a>, <a href="https://publications.waset.org/abstracts/search?q=tandem%20repeats" title=" tandem repeats"> tandem repeats</a> </p> <a href="https://publications.waset.org/abstracts/34218/a-novel-chicken-w-chromosome-specific-tandem-repeat" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34218.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">389</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">123</span> Atomic Force Microscopy Studies of DNA Binding Properties of the Archaeal Mini Chromosome Maintenance Complex</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amna%20Abdalla%20Mohammed%20Khalid">Amna Abdalla Mohammed Khalid</a>, <a href="https://publications.waset.org/abstracts/search?q=Pietro%20Parisse"> Pietro Parisse</a>, <a href="https://publications.waset.org/abstracts/search?q=Silvia%20Onesti"> Silvia Onesti</a>, <a href="https://publications.waset.org/abstracts/search?q=Loredana%20Casalis"> Loredana Casalis</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Basic cellular processes as DNA replication are crucial to cell life. Understanding at the molecular level the mechanisms that govern DNA replication in proliferating cells is fundamental to understand disease connected to genomic instabilities, as a genetic disease and cancer. A key step for DNA replication to take place, is unwinding the DNA double helix and this carried out by proteins called helicases. The archaeal MCM (minichromosome maintenance) complex from Methanothermobacter thermautotrophicus have being studied using Atomic Force Microscopy (AFM), imaging in air and liquid (Physiological environment). The accurate analysis of AFM topographic images allowed to understand the static conformations as well the interaction dynamic of MCM and DNA double helix in the present of ATP. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=DNA" title="DNA">DNA</a>, <a href="https://publications.waset.org/abstracts/search?q=protein-DNA%20interaction" title=" protein-DNA interaction"> protein-DNA interaction</a>, <a href="https://publications.waset.org/abstracts/search?q=MCM%20%28mini%20chromosome%20manteinance%29%20complex" title=" MCM (mini chromosome manteinance) complex"> MCM (mini chromosome manteinance) complex</a>, <a href="https://publications.waset.org/abstracts/search?q=atomic%20force%20microscopy%20%28AFM%29" title=" atomic force microscopy (AFM)"> atomic force microscopy (AFM)</a> </p> <a href="https://publications.waset.org/abstracts/65589/atomic-force-microscopy-studies-of-dna-binding-properties-of-the-archaeal-mini-chromosome-maintenance-complex" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65589.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">308</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=chromosome%20rearrangement&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=chromosome%20rearrangement&page=3">3</a></li> <li class="page-item"><a class="page-link" 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