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col-sm-4"> <p class="text-muted mb-0"> Editorial - (2022)Volume 9, Issue 6 </p> </div> <div class="col-12 col-sm-8 text-right custom-column"> <a href="https://www.longdom.org/open-access/crisprcas-system-and-its-applications.pdf" title="View PDF" class="btn btn-sm bg-green-600 rounded-50"><i class="fas fa-file-pdf"></i> View PDF</a> <a href="https://www.longdom.org/pdfdownload.php?download=open-access/crisprcas-system-and-its-applications.pdf&aid=94541" title="Download PDF" class="btn btn-sm bg-green-600 rounded-50"><i class="fas fa-download"></i> Download PDF</a> </div> </div> <h2 class="font-size-7 mt-2">CRISPR-Cas System and its Applications</h2> <a href='https://www.longdom.org/author/mariliyan-rohan-47539' title='Mariliyan Rohan' style='color:#555; border-bottom:1px dotted #CCC;'>Mariliyan Rohan</a><sup><a href='#Mariliyan_Rohan'>*</a></sup> <div> </div> <a id="Mariliyan_Rohan"></a> <strong><sup>*</sup>Correspondence:</strong> Mariliyan Rohan, Department of Biotechnology, Federal University of Lafia, Lafia, Nigeria, <strong>Email:</strong> <i class='fa fa-envelope' aria-hidden='true' title='marirohan@edu.com'></i> <p><a href="#ai"><strong>Author info »</strong></a></p> <h4>Editorial</h4> <p>The CRISPR–Cas (Clustered Regularly Interspaced Short Palindromic Repeats–CRISPR-associated proteins) modules are adaptive <a target='_blank' href='https://www.longdom.org/peer-reviewed-journals/immunity-12162.html'>immunity</a> systems that are present in many <a target='_blank' href='https://www.longdom.org/peer-reviewed-journals/archaea-5112.html'>archaea</a> and bacteria. These defense systems are encoded by operons that have an extremely varied architecture and a high rate of <a target='_blank' href='https://www.longdom.org/peer-reviewed-journals/evolution-49031.html'>evolution</a> for both the Cas genes and the unique spacer content. Three major types of CRISPR–Cas system are described, with a further division into numerous subtypes and a few chimeric variants. Given the intricacy of the genomic architectures and the enormously dynamic <a target='_blank' href='https://www.longdom.org/peer-reviewed-journals/evolution-49031.html'>evolution</a> of the CRISPR–Cas systems, a unified classification of these systems should be based on multiple criteria. The new classification keeps the overall structure of the previous version but is extended to now encompass two classes, five types and 16 subtypes. The relative stability of the classification advises that the most predominant variants of CRISPR–Cas systems. However, the presence of rare, currently unclassifiable variants implies that additional types and subtypes remain to be characterized. The CRISPR-Cas systems belong to two classes, with multi-subunit effector complexes in class 1 and singleprotein effector modules in class 2. Concerted genomic and experimental efforts on complete characterization of Class 2 CRISPR-Cas systems led to the identification of two new types and numerous subtypes. The newly categorized type VI systems are the first among the CRISPR-Cas variants to exclusively target RNA. Unexpectedly, in some of the class 2 systems, the effector protein is furthermore responsible for the pre-crRNA processing. Comparative analysis of the effector complexes indicates that class 2 systems developed from mobile genetic elements on multiple, independent occasions.</p> <p>The prokaryote-derived CRISPR–Cas <a target='_blank' href='https://www.longdom.org/peer-reviewed-journals/genome-7056.html'>genome</a> editing systems have transmuted our ability to manipulate, identify, image and annotate particular DNA and <a target='_blank' href='https://www.longdom.org/peer-reviewed-journals/rna-210.html'>RNA</a> sequences in living <a target='_blank' href='https://www.longdom.org/peer-reviewed-journals/cells-53612.html'>cells</a> of diverse species. The simplicity of use and robustness of this technology have revolutionized <a target='_blank' href='https://www.longdom.org/peer-reviewed-journals/genome-7056.html'>genome</a> editing for research ranging from fundamental science to translational medicine. Initial successes have inspired efforts to determine new systems for targeting and manipulating nucleic acids, comprising those from Cas 9, Cas 12, Cascade and Cas 13 orthologousin viv. <a target='_blank' href='https://www.longdom.org/peer-reviewed-journals/genome-7056.html'>Genome</a> editing by CRISPR–Cas can use non-homologous end joining and homology-directed repair for DNA repair, as well as single-base editing enzymes. In addition to targeting DNA, CRISPR–Cas-based RNA-targeting tools are being advanced for research, medicine and diagnostics. Nuclease-inactive and RNAtargeting Cas proteins have been joined to a plethora of effector proteins to regulate gene expression, epigenetic alterations and <a target='_blank' href='https://www.longdom.org/peer-reviewed-journals/chromatin-26664.html'>chromatin</a> interactions. Collectively, the new developments are extensively improving our understanding of biological processes and are propelling CRISPR–Cas-based tools towards clinical use in gene and cell rehabilitations.</p> <p>Functional explanation of causal genetic variants and elements necessitates precise <a target='_blank' href='https://www.longdom.org/peer-reviewed-journals/genome-7056.html'>genome</a> editing approches. The type II prokaryotic CRISPR (clustered regularly interspaced short palindromic repeats)/Cas adaptive <a target='_blank' href='https://www.longdom.org/peer-reviewed-journals/immune-system-8102.html'>immune system</a> has been shown to facilitate RNA-guided site-specific DNA cleavage. Cas 9 can also be changed into a nicking enzyme to facilitate homology-directed repair with minimal mutagenic activity. Lastly, multiple guide sequences can be encoded into a single CRISPR array to permit simultaneous editing of numerous sites within the mammalian genome, demonstrating easy programmability and wide applicability of the RNA-guided nuclease technology.</p>   <div class="card bg-light mb-3"> <div class="card-body px-3 pb-0"> <h4 class="font-size-4"><a id="ai"></a>Author Info</h4> <a href='https://www.longdom.org/author/mariliyan-rohan-47539' title='Mariliyan Rohan' style='color:#555; border-bottom:1px dotted #CCC;'>Mariliyan Rohan</a><sup><a href='#Mariliyan_Rohan'>*</a></sup> <div> </div> Department of Biotechnology, Federal University of Lafia, Lafia, Nigeria<br> <div> </div> <p><strong>Citation:</strong> Rohan M (2022) CRISPR鈥揅as System and Its Applications. Curr Synthetic Sys Biol. 10:007.</p> <p> <strong>Received: </strong>18-May-2022, Manuscript No. CSSB-22-17539; <strong>Editor assigned: </strong>19-May-2022, Pre QC No. CSSB-22-17539(PQ); <strong>Reviewed: </strong>02-Jun-2022, QC No. CSSB-22-17539; <strong>Revised: </strong>18-Jul-2022, Manuscript No. CSSB-22-17539(R); <strong>Published:</strong> 25-Jul-2022 , DOI: DOI: 10.35248/2332-0737.22.10.007</p> <p><strong>Copyright: </strong>漏 2022 Rohan M. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.</p> </div> </div> </div> </div> </div> </section> <footer class="bg-blue-grey-900 py-3"> <div class="container"> <div class="row"> <div class="col-12 col-sm-4"> <h4 class="white font-size-4 fweight-400 border-bottom-1 pb-2">Content Links</h4> <ul class="list-unstyled footer-links font-size-3"> <li><a class="" href="https://www.longdom.org/online-tools.html" title="Click here">Tools</a> </li> <li><a class="" href="https://www.longdom.org/feedback.html" title="Click here">Feedback</a></li> <li><a class="" href="https://www.longdom.org/careers.html" title="Click here">Careers</a></li> <li><a class="" href="https://www.longdom.org/privacy-policy.html" title="Click here">Privacy Policy</a></li> <li><a class="" href="https://www.longdom.org/terms-conditions.html" title="Click here">Terms & Conditions</a></li> <li><a class="" href="https://www.longdom.org/authors-reviewers-editors.html" title="Click here">Authors, Reviewers & Editors</a></li> </ul> </div> <div class="col-12 col-sm-4"> <h4 class="white font-size-4 fweight-400 border-bottom-1 pb-2">Contact Longdom</h4> <p>Longdom Group SA<br> Avenue Roger Vandendriessche,<br> 18, 1150 Brussels, Belgium<br> Phone: +442038085340 <br><strong>Email:</strong> <a href="mailto:info@longdom.org" class="white" title="Click here">info@longdom.org</a></p> </div> <div class="col-12 col-sm-4"> <h4 class="white font-size-4 fweight-400 border-bottom-1 pb-2">Connect</h4> <nav class="nav nav-pills social-icons-footer flex-column a-pl-0"> <a href="https://www.facebook.com/longdompublisher" title="Click here" target="_blank" class="nav-link bg-facebook-hover"><i class="fab fa-facebook-f bg-facebook"></i> Facebook</a> <a href="https://www.linkedin.com/company/longdom-publishing-sl/" title="Click here" target="_blank" class="nav-link bg-linkedin-hover"><i class="fab fa-linkedin-in bg-linkedin"></i> Linkedin</a> <a href="https://twitter.com/LongdomP" title="Click here" target="_blank" class="nav-link bg-twitter-hover"><i class="fab fa-twitter bg-twitter"></i> Twitter</a> <a href="https://www.instagram.com/longdom_publisher/" title="Click here" target="_blank" class="nav-link bg-instagram-hover"><i class="fab fa-instagram bg-instagram"></i> Instagram</a> </nav> </div> </div> <div class="row text-center"> <div class="col"> <p>Copyright © 2024 <a href="https://www.longdom.org/" title="Click here" class="white">Longdom Publishing</a>.</p> </div> </div> </div> </footer>  <a href="#0" class="cd-top js-cd-top">Top</a>   <script defer src="https://code.jquery.com/jquery-3.3.1.min.js"></script> <script defer src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script> <script defer src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>  <script> jQuery(function($) { $(window).scroll(function fix_element() { $('#target').css( $(window).scrollTop() > 100 ? 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