{"id":41750,"date":"1999-01-01T00:00:00","date_gmt":"1999-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/iniciacion-y-elongacion-transcripcionales-de-oligonucleosomas-desprovistos-de-los-dimeros-h2a-h2b-o-de-los-dominios-histonicos-terminales\/"},"modified":"1999-01-01T00:00:00","modified_gmt":"1999-01-01T00:00:00","slug":"iniciacion-y-elongacion-transcripcionales-de-oligonucleosomas-desprovistos-de-los-dimeros-h2a-h2b-o-de-los-dominios-histonicos-terminales","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/iniciacion-y-elongacion-transcripcionales-de-oligonucleosomas-desprovistos-de-los-dimeros-h2a-h2b-o-de-los-dominios-histonicos-terminales\/","title":{"rendered":"Iniciacion y elongacion transcripcionales de oligonucleosomas desprovistos de los dimeros h2a-h2b o de los dominios histonicos terminales."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Mayel Chirinos Espin <\/strong><\/h2>\n<p>Los moldes de transcripci\u00f3n para la rna polimerasa de t7 se ensamblaron a partir de oct\u00e1meros de histonas y tres especies diferentes de dna: dos circulares (pgemex-1 pt207-18) y una lineal (t7-207-18). Pgemex-1 carece de secuencias posicionantes de nucleosomas, mientras pt207-18 y t7-207-18 poseen 18 copias consecutivas de una secuencia posicionante de nuclesomas. Con moldes ensamblados con s\u00f3lo tetr\u00e1meros o deficientes de los dominiso hist\u00f3nicos terminales, se estudi\u00f3 el efecto que produc\u00edan estas modificaciones, evaluando la acci\u00f3n de diferentes niveles estructurales dependientes de la concentraci\u00f3n de sales, y el papel de las mismas en los procesos de iniciaci\u00f3n y elongaci\u00f3n transcripcional. Encontramos que, en las distintas condiciones salinas estudiadas, la inhibici\u00f3n de la transcripci\u00f3n producida por la uni\u00f3n de oct\u00e1meros de histonas al dna disminuye significativamente al utilizar moldes oligonucleos\u00f3micos carentes de d\u00edmeros h2a-h2b o de los dominios terminales de las histonas, fen\u00f3menos que tienen lugar, al menos en parte, a nivel nucleos\u00f3mico..<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Iniciacion y elongacion transcripcionales de oligonucleosomas desprovistos de los dimeros h2a-h2b o de los dominios histonicos terminales.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Iniciacion y elongacion transcripcionales de oligonucleosomas desprovistos de los dimeros h2a-h2b o de los dominios histonicos terminales. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Mayel Chirinos Espin <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1999<\/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>Enrique Palacian Gil<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Luis Franco vera <\/li>\n<li>german Rivas cabellero (vocal)<\/li>\n<li>pere Suau le\u00f3n (vocal)<\/li>\n<li>Francisco Hernandez sanchez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Mayel Chirinos Espin Los moldes de transcripci\u00f3n para la rna polimerasa de t7 se ensamblaron a partir [&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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