{"id":69212,"date":"2004-09-07T00:00:00","date_gmt":"2004-09-07T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/expresion-y-caracterizacion-bioqua%c2%admica-de-protea%c2%adnas-sulfoferricas-implicadas-en-la-reduccion-del-nitrato-en-bacterias-del-genero-rhodobacter\/"},"modified":"2004-09-07T00:00:00","modified_gmt":"2004-09-07T00:00:00","slug":"expresion-y-caracterizacion-bioqua%c2%admica-de-protea%c2%adnas-sulfoferricas-implicadas-en-la-reduccion-del-nitrato-en-bacterias-del-genero-rhodobacter","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/cordoba\/expresion-y-caracterizacion-bioqua%c2%admica-de-protea%c2%adnas-sulfoferricas-implicadas-en-la-reduccion-del-nitrato-en-bacterias-del-genero-rhodobacter\/","title":{"rendered":"Expresi\u00f3n y caracterizaci\u00f3n bioqu\u00edmica de prote\u00ednas sulfof\u00e9rricas implicadas en la reducci\u00f3n del nitrato en bacterias del g\u00e9nero rhodobacter"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Olmo Mira Mar\u00eda  Francisca <\/strong><\/h2>\n<p>La reducci\u00f3n del nitrato tiene un papel importante en el ciclo biogeoqu\u00edmico del nitr\u00f3geno e implicaciones en la agricultura, medio ambiente y salud p\u00fablica. El nitrato act\u00faa como un aceptor alternativo de electrones durante la respiraci\u00f3n anaer\u00f3bica bacteriana y es la mayor fuente de nitr\u00f3geno para plantas y bacterias. En procariotas, la reducci\u00f3n de nitrato a nitrito se lleva a cabo por tres diferentes tipos de enzimas, nas, nar y nap, con propiedades reguladoras y bioqu\u00edmicas distintas. Adem\u00e1s, tipos diferentes de nitrito reductasas est\u00e1n presentes en bacterias. Sin embargo, tanto las reducciones de nitrato como las de nitrito requieren la presencia de centros sulfof\u00e9rricos, no s\u00f3lo en las enzimas nitrato y nitrito reductasas, sino tambi\u00e9n en otros componentes del sistema de reducci\u00f3n de nitrato.  en esta tesis doctoral se llev\u00f3 a cabo el estudio de algunas prote\u00ednas sulfof\u00e9rricas implicadas en la reducci\u00f3n del nitrato en bacterias fototr\u00f3ficas. este estudio se desarroll\u00f3 en dos estirpes del g\u00e9nero rhodobacter: r. sphaeroides dsm158, que contiene una sistema peripl\u00e1smico (nap) de reducci\u00f3n del nitrato, y r. Capsulatus e1f1, que tiene un sistema asimilador (nas). Las prote\u00ednas sulfof\u00e9rricas estudiadas fueron napf de r. Sphaeroides dsm158 y hcp, nasb y nird de r. Capsulatus e1f1.  resultados  1.- Napf es la \u00fanica prote\u00edna sulfof\u00e9rrica, adem\u00e1s de la subunidad catal\u00edtica napa, en el sistema de reducci\u00f3n peripl\u00e1smica del nitrato en r. Sphaeroides dsm158 y otras bacterias. La secuencia del gen napf sugiere la presencia de cuatro centros del tipo [4fe-4s] que son unidos transitoriamente a la prote\u00edna, como tambi\u00e9n se dedujo de los estudios espectrosc\u00f3picos de la prote\u00edna recombinante 6xhis-napf purificada de e. coli. Adem\u00e1s, una prote\u00edna nitrato reductasa inactivada mediante su incubaci\u00f3n con bipiridilo fue reactivada por napf s\u00f3lo si tambi\u00e9n estaba presente la prote\u00edna ciste\u00edna desulfurasa nifs<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Expresi\u00f3n y caracterizaci\u00f3n bioqu\u00edmica de prote\u00ednas sulfof\u00e9rricas implicadas en la reducci\u00f3n del nitrato en bacterias del g\u00e9nero rhodobacter<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Expresi\u00f3n y caracterizaci\u00f3n bioqu\u00edmica de prote\u00ednas sulfof\u00e9rricas implicadas en la reducci\u00f3n del nitrato en bacterias del g\u00e9nero rhodobacter <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Olmo Mira Mar\u00eda  Francisca <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 C\u00f3rdoba<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 09\/07\/2004<\/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>Conrado Moreno Vivian<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jos\u00e9 manuel Rold\u00e1n nogueras <\/li>\n<li> David john richardson . (vocal)<\/li>\n<li>enrique Aguilar benitez de lugo (vocal)<\/li>\n<li>enrique Flores garcia (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Olmo Mira Mar\u00eda Francisca La reducci\u00f3n del nitrato tiene un papel importante en el ciclo biogeoqu\u00edmico del [&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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[973],"tags":[20962,151666,2380,11156,34691,151665],"class_list":["post-69212","post","type-post","status-publish","format-standard","hentry","category-cordoba","tag-conrado-moreno-vivian","tag-david-john-richardson","tag-enrique-aguilar-benitez-de-lugo","tag-enrique-flores-garcia","tag-jose-manuel-roldan-nogueras","tag-olmo-mira-maria-francisca"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/69212","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=69212"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/69212\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=69212"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=69212"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=69212"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}