{"id":90319,"date":"2018-03-10T00:15:42","date_gmt":"2018-03-10T00:15:42","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/transporte-de-urea-y-estudio-de-promotores-de-genes-regulados-por-nitrogeno-en-la-cianobacteria-anabaena-sp-pcc-7120\/"},"modified":"2018-03-10T00:15:42","modified_gmt":"2018-03-10T00:15:42","slug":"transporte-de-urea-y-estudio-de-promotores-de-genes-regulados-por-nitrogeno-en-la-cianobacteria-anabaena-sp-pcc-7120","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/transporte-de-urea-y-estudio-de-promotores-de-genes-regulados-por-nitrogeno-en-la-cianobacteria-anabaena-sp-pcc-7120\/","title":{"rendered":"Transporte de urea y estudio de promotores de genes regulados por nitrogeno en la cianobacteria anabaena sp.pcc 7120"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Ana Valladares Ruiz <\/strong><\/h2>\n<p>En este trabajo se abord\u00f3, por un lado, el estudio del sistema de asimilacion de urea en cianobacterias, y, por otro, la estructura de los promotores funcionales en heterocistos de anabaena sp. Pcc 7120.  en el contexto del sistema de metabolizacion de la urea, se ha identificado y caracterizado un sistema de transporte de urea de alta afinidad que media la concentracion de este sustrato en el interior celular. Este sistema de transporte es de tipo abc y a diferencia de la enzima ureasa, que lleva a cabo la degradacion de la urea hasta amonio y co2, esta regulado por el regulador transcripcional ntca.  en esta memoria se recoge ademas un estudio realizado sobre algunos promotores activos en los heterocistos de anabaena sp.Pcc 7120. Se ha demostrado la participacion de ntca en la transcripcion de algunos genes en los heterocistos maduros, la cual puede tener lugar desde distintos tipos de promotores. asimismo, se ha realizado un estudio detallado de la regi\u00f3n promotora del gen glna, con el fin de analizar la contribucion de cada uno de los promotores de este gen a la expresion genica en distintas condiciones nitrogenadas y en los distintos tipos celulares.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Transporte de urea y estudio de promotores de genes regulados por nitrogeno en la cianobacteria anabaena sp.pcc 7120<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Transporte de urea y estudio de promotores de genes regulados por nitrogeno en la cianobacteria anabaena sp.pcc 7120 <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Ana Valladares Ruiz <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Sevilla<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 25\/05\/2001<\/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>Antonia Herrero Moreno<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Miguel Garcia guerrero <\/li>\n<li>Francisco Javier Florencio bellido (vocal)<\/li>\n<li> Fernandez del campo gonzalez francisca (vocal)<\/li>\n<li>asunci\u00f3n Contreras de vera (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Ana Valladares Ruiz En este trabajo se abord\u00f3, por un lado, el estudio del sistema de asimilacion [&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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