{"id":75474,"date":"2005-07-07T00:00:00","date_gmt":"2005-07-07T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/dynamic-factors-of-bacteriorhodopsin-regulation-key-points-in-helices-bc-and-f\/"},"modified":"2005-07-07T00:00:00","modified_gmt":"2005-07-07T00:00:00","slug":"dynamic-factors-of-bacteriorhodopsin-regulation-key-points-in-helices-bc-and-f","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/dynamic-factors-of-bacteriorhodopsin-regulation-key-points-in-helices-bc-and-f\/","title":{"rendered":"Dynamic factors of bacteriorhodopsin: regulation key points in helices b,c and f."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Alejandro Per\u00e1lvarez Mar\u00edn <\/strong><\/h2>\n<p>La bacteriorodopsina (br) es el sistema fotosint\u00e9tico m\u00e1s sencillo que se conoce, debido a que genera un gradiente electroqu\u00edmico a partir de la energ\u00eda de la luz, transportando protones a trav\u00e9s de la membrana que es aprovechado por la atp-sintasa para obtener energ\u00eda, en condiciones de falta de ox\u00edgeno. Utilizando m\u00e9todos de biolog\u00eda molecular para la mutag\u00e9nesis de prote\u00ednas, combinado con estudios biof\u00edsicos, se determina como cambios puntuales en la secuencia proteica afectan a la estructura y funci\u00f3n de la prote\u00edna.  en este estudio nos hemos propuesto determinar el rol de las prolinas incluidas en las alfa-h\u00e9lices b (pro50), c(pro91) y f (pro186), adem\u00e1s de las fuerzas e interacciones responsables de la situaci\u00f3n y la forma distorsionada de la h\u00e9lice c de la br a la altura del motivo thr90-pro91.  esta h\u00e9lice es clave en el mecanismo de transporte del prot\u00f3n, ya que contiene los dos residuos esp\u00e1rtico (asp85 y asp96) que participan directamente en el transporte del prot\u00f3n.  los estudios biof\u00edsicos realizados permiten concluir que las prolinas incluidas en las alfa-h\u00e9lices transmembrana desempe\u00f1an principalmente un papel din\u00e1mico en la bacteriorodospsina.  respecto al motivo thr90-pro91 en la h\u00e9lice c, destacar la importancia de este mecanismo para desarrollar una correcta funci\u00f3n de transporte del protr\u00f3n. Los resultados obtenidos para bacteriorodopsina son extensibles a otras prote\u00ednas transmembrana.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Dynamic factors of bacteriorhodopsin: regulation key points in helices b,c and f.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Dynamic factors of bacteriorhodopsin: regulation key points in helices b,c and f. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Alejandro Per\u00e1lvarez Mar\u00edn <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 07\/07\/2005<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Esteve Padr\u00f3s Morell<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: leonardo Pardo carrasco <\/li>\n<li>ismael Mingarro mu\u00f1oz (vocal)<\/li>\n<li>angel Mozo villarias (vocal)<\/li>\n<li>francesc Sepulcre s\u00e1nchez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Alejandro Per\u00e1lvarez Mar\u00edn La bacteriorodopsina (br) es el sistema fotosint\u00e9tico m\u00e1s sencillo que se conoce, debido a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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