{"id":54655,"date":"2018-03-09T22:42:23","date_gmt":"2018-03-09T22:42:23","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/la-familia-de-protea%c2%adnas-hha-ymoa-estudios-estructurales-y-papel-regulador-en-y-enterocolitica\/"},"modified":"2018-03-09T22:42:23","modified_gmt":"2018-03-09T22:42:23","slug":"la-familia-de-protea%c2%adnas-hha-ymoa-estudios-estructurales-y-papel-regulador-en-y-enterocolitica","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/microbiologia\/la-familia-de-protea%c2%adnas-hha-ymoa-estudios-estructurales-y-papel-regulador-en-y-enterocolitica\/","title":{"rendered":"La familia de prote\u00ednas hha-ymoa: estudios estructurales y papel regulador en y. enterocolitica"},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Pons Xim\u00e9nez Jos\u00e9 Ignacio <\/strong><\/h2>\n<p>En la adaptaci\u00f3n de las bacterias ante cambios ambientales juegan un importante papel las prote\u00ednas asociadas al nucleoide. Estas prote\u00ednas presentan una doble funci\u00f3n: la estructuraci\u00f3n del nucleoide bacteriano y otros procesos relacionados con el adn como es la regulaci\u00f3n de la expresi\u00f3n g\u00e9nica. Una de las prote\u00ednas asociadas al nucleoide mejor caracterizada es la prote\u00edna h-ns, que se encuentran ampliamente distribuida en bacterias g(-). una de las caracter\u00edsticas de h-ns es su capacidad de formar d\u00edmeros con miembros de la familia de prote\u00ednas hha\/ymoa, formando de esta forma complejos represores que intervienen en la regulaci\u00f3n de determinados operones, como es el caso del oper\u00f3n hly de e.Coli. en este trabajo, y en colaboraci\u00f3n con el grupo de rmn de biomol\u00e9culas dirigi\u00f3 por el doctor miquel pons, se han realizado una se rie de estudios estructurales sobre la prote\u00edna hha y su interacci\u00f3n con h-ns, en los que se ha puesto de manifiesto que, a\u00fan sin ser unos de los residuos aminoac\u00eddicos m\u00e1s improtantes en la interacci\u00f3n de hha con h-ns, la ciste\u00edna en posici\u00f3n 18 juega un importante papel en el equilibrio conformaciones de hha cuando intercciona con h-ns.  la sustituci\u00f3n de esta ciste\u00edna por una isoleucina da lugar a una prote\u00edna hha mutante incapaz de complementar la mutaci\u00f3n hha, y que provoca una reducci\u00f3n en la tasa de crecimiento de e.Coli en condiciones de baja osmolaridad. Este efecto en condiciones de baja osmolaridad en e.Coli, podr\u00eda venir explicado por la mayor resistencia a la fuerza i\u00f3nica del miedo de la interacci\u00f3n de esta prote\u00edna hha mutante con la prote\u00edna h-ns, que podr\u00eda venir explicado por la mayor resistencia a la fuerza i\u00f3nica del medio de la interacci\u00f3n de esta prote\u00edna hha mutante con la prote\u00edna h-ns, que podr\u00eda provocar la desregulaci\u00f3n de alg\u00fan gen\/es esenciales en condiciones de baja osmolaridad. una segunda parte de esta tesis doctoral est\u00e1 dedicada al gen hns de y.Enterool\u00edtica. E<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>La familia de prote\u00ednas hha-ymoa: estudios estructurales y papel regulador en y. enterocolitica<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 La familia de prote\u00ednas hha-ymoa: estudios estructurales y papel regulador en y. enterocolitica <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Pons Xim\u00e9nez Jos\u00e9 Ignacio <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 22\/09\/2006<\/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>Antonio Ju\u00e1rez Gim\u00e9nez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: miquel Pons valles <\/li>\n<li> Prenafeta i amarg\u00f3s toni (vocal)<\/li>\n<li>s\u00f3nia Paytubi casabona (vocal)<\/li>\n<li>montserrat Llagostera casas (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Pons Xim\u00e9nez Jos\u00e9 Ignacio En la adaptaci\u00f3n de las bacterias ante cambios ambientales juegan un importante papel [&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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