{"id":6282,"date":"1995-01-01T00:00:00","date_gmt":"1995-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/1995\/01\/01\/caracterizacion-de-la-expresion-genica-del-operon-citqrp-de-lactococcus-lactis-biovar-diacetylactis\/"},"modified":"1995-01-01T00:00:00","modified_gmt":"1995-01-01T00:00:00","slug":"caracterizacion-de-la-expresion-genica-del-operon-citqrp-de-lactococcus-lactis-biovar-diacetylactis","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-medicas\/caracterizacion-de-la-expresion-genica-del-operon-citqrp-de-lactococcus-lactis-biovar-diacetylactis\/","title":{"rendered":"Caracterizacion de la expresion genica del operon citqrp de lactococcus lactis biovar diacetylactis."},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Lopez De Felipe Toledano Felix <\/strong><\/h2>\n<p>En el transcurso de esta tesis se ha caracterizado la expresion genica de la citrato permeasa, enzima clave en la ruta metabolica que conduce a la produccion de diacetilo durante la elaboracion de productos lacteos. La secuenciacion de la zona que precede al gen citp ha revelado la existencia de otros tres genes, citq, citr y orf1. Se han identificado los transcritos especificos de citp y se han caracterizado los sitios de iniciacion y terminacion de ambos transcritos. Ello ha permitido la identificacion de dos promotores putativos de la transcripcion de citp, p1 y p2. El transcrito mayor sufre un procesamiento \u00abin vivo\u00bb que genera los transcritos de menor tama\u00f1o. El producto del gen citr parece actuar como regulador negativo de la expresion de citp. La acidificacion del medio de cultivo estimula la sintesis de la citrato permeasa, mientras que la presencia de citrato en el medio de cultivo no afecta al transporte de este metabolito al citoplasma. El gen citp de lactococcus lactis se transcribe en escherichia coli en un unico transcrito cuyos sitios de iniciacion y terminacion han sido caracterizados. Por ultimo se ha localizado una secuencia de insercion que ha generado dos promotores para la expresion de citp, p2 y p2.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Caracterizacion de la expresion genica del operon citqrp de lactococcus lactis biovar diacetylactis.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Caracterizacion de la expresion genica del operon citqrp de lactococcus lactis biovar diacetylactis. <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Lopez De Felipe Toledano Felix <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1995<\/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>Paloma L\u00f3pez Garc\u00eda<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Juan  Evaristo Suarez Fernandez <\/li>\n<li>Antonio Tormo (vocal)<\/li>\n<li>Ramon Diaz Orejas (vocal)<\/li>\n<li>Antonio Puyet Catalina (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Lopez De Felipe Toledano Felix En el transcurso de esta tesis se ha caracterizado la expresion genica [&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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