Search results for: bacteriorhodopsin

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bacteriorhodopsin</title> <meta name="description" content="Search results for: bacteriorhodopsin"> <meta name="keywords" content="bacteriorhodopsin"> <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 d-lg-none 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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="bacteriorhodopsin"> <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> 2</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: bacteriorhodopsin</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2</span> Interaction of Glycolipid S-TGA-1 with Bacteriorhodopsin and Its Functional Role </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Masataka%20Inada">Masataka Inada</a>, <a href="https://publications.waset.org/abstracts/search?q=Masanao%20Kinoshita"> Masanao Kinoshita</a>, <a href="https://publications.waset.org/abstracts/search?q=Nobuaki%20Matsumori"> Nobuaki Matsumori</a> </p> <p class="card-text"><strong>Abstract:</strong></p> It has been demonstrated that lipid molecules in biological membranes are responsible for the functionalization and structuration of membrane proteins. However, it is still unclear how the interaction of lipid molecules with membrane proteins is correlated with the function of the membrane proteins. Here we first developed an evaluation method for the interaction between membrane proteins and lipid molecules via surface plasmon resonance (SPR) analysis. Bacteriorhodopsin (bR), which was obtained by the culture of halobacteria, was used as a membrane protein. We prepared SPR sensor chips covered with self-assembled monolayer containing mercaptocarboxylic acids, and immobilized bR onto them. Then, we evaluated the interactions with various lipids that have different structures. As a result, the halobacterium-specific glycolipid S-TGA-1 was found to have much higher affinity with bRs than other lipids. This is probably due to not only hydrophobic and electrostatic interactions but also hydrogen bonds with sugar moieties in the glycolipid. Next, we analyzed the roles of the lipid in the structuration and functionalization of bR. CD analysis showed that S-TGA-1 could promote trimerization of bR monomers more efficiently than any other lipids. Flash photolysis further indicated that bR trimers formed by S-TGA-1 reproduced the photocyclic activity of bR in purple membrane, halobacterium-membrane. These results suggest that S-TGA-1 promotes trimerization of bR through strong interactions and consequently fulfills the bR鈥檚 function efficiently. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=membrane%20protein" title="membrane protein">membrane protein</a>, <a href="https://publications.waset.org/abstracts/search?q=lipid" title=" lipid"> lipid</a>, <a href="https://publications.waset.org/abstracts/search?q=interaction" title=" interaction"> interaction</a>, <a href="https://publications.waset.org/abstracts/search?q=bacteriorhodopsin" title=" bacteriorhodopsin"> bacteriorhodopsin</a>, <a href="https://publications.waset.org/abstracts/search?q=glycolipid" title=" glycolipid"> glycolipid</a> </p> <a href="https://publications.waset.org/abstracts/72463/interaction-of-glycolipid-s-tga-1-with-bacteriorhodopsin-and-its-functional-role" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/72463.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">253</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">1</span> Excited State Structural Dynamics of Retinal Isomerization Revealed by a Femtosecond X-Ray Laser </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Przemyslaw%20Nogly">Przemyslaw Nogly</a>, <a href="https://publications.waset.org/abstracts/search?q=Tobias%20Weinert"> Tobias Weinert</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20James"> Daniel James</a>, <a href="https://publications.waset.org/abstracts/search?q=Sergio%20Carbajo"> Sergio Carbajo</a>, <a href="https://publications.waset.org/abstracts/search?q=Dmitry%20Ozerov"> Dmitry Ozerov</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonia%20Furrer"> Antonia Furrer</a>, <a href="https://publications.waset.org/abstracts/search?q=Dardan%20Gashi"> Dardan Gashi</a>, <a href="https://publications.waset.org/abstracts/search?q=Veniamin%20Borin"> Veniamin Borin</a>, <a href="https://publications.waset.org/abstracts/search?q=Petr%20Skopintsev"> Petr Skopintsev</a>, <a href="https://publications.waset.org/abstracts/search?q=Kathrin%20Jaeger"> Kathrin Jaeger</a>, <a href="https://publications.waset.org/abstracts/search?q=Karol%20Nass"> Karol Nass</a>, <a href="https://publications.waset.org/abstracts/search?q=Petra%20Bath"> Petra Bath</a>, <a href="https://publications.waset.org/abstracts/search?q=Robert%20Bosman"> Robert Bosman</a>, <a href="https://publications.waset.org/abstracts/search?q=Jason%20Koglin"> Jason Koglin</a>, <a href="https://publications.waset.org/abstracts/search?q=Matthew%20Seaberg"> Matthew Seaberg</a>, <a href="https://publications.waset.org/abstracts/search?q=Thomas%20Lane"> Thomas Lane</a>, <a href="https://publications.waset.org/abstracts/search?q=Demet%20Kekilli"> Demet Kekilli</a>, <a href="https://publications.waset.org/abstracts/search?q=Steffen%20Br%C3%BCnle"> Steffen Br眉nle</a>, <a href="https://publications.waset.org/abstracts/search?q=Tomoyuki%20Tanaka"> Tomoyuki Tanaka</a>, <a href="https://publications.waset.org/abstracts/search?q=Wenting%20Wu"> Wenting Wu</a>, <a href="https://publications.waset.org/abstracts/search?q=Christopher%20Milne"> Christopher Milne</a>, <a href="https://publications.waset.org/abstracts/search?q=Thomas%20A.%20White"> Thomas A. White</a>, <a href="https://publications.waset.org/abstracts/search?q=Anton%20Barty"> Anton Barty</a>, <a href="https://publications.waset.org/abstracts/search?q=Uwe%20Weierstall"> Uwe Weierstall</a>, <a href="https://publications.waset.org/abstracts/search?q=Valerie%20Panneels"> Valerie Panneels</a>, <a href="https://publications.waset.org/abstracts/search?q=Eriko%20Nango"> Eriko Nango</a>, <a href="https://publications.waset.org/abstracts/search?q=So%20Iwata"> So Iwata</a>, <a href="https://publications.waset.org/abstracts/search?q=Mark%20Hunter"> Mark Hunter</a>, <a href="https://publications.waset.org/abstracts/search?q=Igor%20Schapiro"> Igor Schapiro</a>, <a href="https://publications.waset.org/abstracts/search?q=Gebhard%20Schertler"> Gebhard Schertler</a>, <a href="https://publications.waset.org/abstracts/search?q=Richard%20Neutze"> Richard Neutze</a>, <a href="https://publications.waset.org/abstracts/search?q=J%C3%B6rg%20Standfuss"> J枚rg Standfuss</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ultrafast isomerization of retinal is the primary step in a range of photoresponsive biological functions including vision in humans and ion-transport across bacterial membranes. We studied the sub-picosecond structural dynamics of retinal isomerization in the light-driven proton pump bacteriorhodopsin using an X-ray laser. Twenty snapshots with near-atomic spatial and temporal resolution in the femtosecond regime show how the excited all-trans retinal samples conformational states within the protein binding pocket prior to passing through a highly-twisted geometry and emerging in the 13-cis conformation. The aspartic acid residues and functional water molecules in proximity of the retinal Schiff base respond collectively to formation and decay of the initial excited state and retinal isomerization. These observations reveal how the protein scaffold guides this remarkably efficient photochemical reaction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bacteriorhodopsin" title="bacteriorhodopsin">bacteriorhodopsin</a>, <a href="https://publications.waset.org/abstracts/search?q=free-electron%20laser" title=" free-electron laser"> free-electron laser</a>, <a href="https://publications.waset.org/abstracts/search?q=retinal%20isomerization%20mechanism" title=" retinal isomerization mechanism"> retinal isomerization mechanism</a>, <a href="https://publications.waset.org/abstracts/search?q=time-resolved%20crystallography" title=" time-resolved crystallography"> time-resolved crystallography</a> </p> <a href="https://publications.waset.org/abstracts/90555/excited-state-structural-dynamics-of-retinal-isomerization-revealed-by-a-femtosecond-x-ray-laser" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/90555.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">248</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/WASET-16th-foundational-anniversary.pdf">WASET celebrates its 16th foundational anniversary</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Account <li><a href="https://waset.org/profile">My Account</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Explore <li><a href="https://waset.org/disciplines">Disciplines</a></li> <li><a href="https://waset.org/conferences">Conferences</a></li> <li><a href="https://waset.org/conference-programs">Conference Program</a></li> <li><a href="https://waset.org/committees">Committees</a></li> <li><a href="https://publications.waset.org">Publications</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Research <li><a href="https://publications.waset.org/abstracts">Abstracts</a></li> <li><a href="https://publications.waset.org">Periodicals</a></li> <li><a href="https://publications.waset.org/archive">Archive</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Open Science <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Science-Philosophy.pdf">Open Science Philosophy</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Science-Award.pdf">Open Science Award</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Open-Society-Open-Science-and-Open-Innovation.pdf">Open Innovation</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Postdoctoral-Fellowship-Award.pdf">Postdoctoral Fellowship Award</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/Scholarly-Research-Review.pdf">Scholarly Research Review</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Support <li><a href="https://waset.org/page/support">Support</a></li> <li><a href="https://waset.org/profile/messages/create">Contact Us</a></li> <li><a href="https://waset.org/profile/messages/create">Report Abuse</a></li> </ul> </div> </div> </div> </div> </div> <div class="container text-center"> <hr style="margin-top:0;margin-bottom:.3rem;"> <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank" class="text-muted small">Creative Commons Attribution 4.0 International License</a> <div id="copy" class="mt-2">© 2024 World Academy of Science, Engineering and Technology</div> </div> </footer> <a href="javascript:" id="return-to-top"><i class="fas fa-arrow-up"></i></a> <div class="modal" id="modal-template"> <div class="modal-dialog"> <div class="modal-content"> <div class="row m-0 mt-1"> <div class="col-md-12"> <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button> </div> </div> <div class="modal-body"></div> </div> </div> </div> <script src="https://cdn.waset.org/static/plugins/jquery-3.3.1.min.js"></script> <script src="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/js/bootstrap.bundle.min.js"></script> <script src="https://cdn.waset.org/static/js/site.js?v=150220211556"></script> <script> jQuery(document).ready(function() { /*jQuery.get("https://publications.waset.org/xhr/user-menu", function (response) { jQuery('#mainNavMenu').append(response); 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Search results for: bacteriorhodopsin