{"id":72985,"date":"2005-01-03T00:00:00","date_gmt":"2005-01-03T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/transcription-factors-under-the-control-of-the-yeast-hog1-mapk\/"},"modified":"2005-01-03T00:00:00","modified_gmt":"2005-01-03T00:00:00","slug":"transcription-factors-under-the-control-of-the-yeast-hog1-mapk","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/transcription-factors-under-the-control-of-the-yeast-hog1-mapk\/","title":{"rendered":"Transcription factors under the control of the yeast hog1 mapk"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Laura Casadom\u00e9 Burriel <\/strong><\/h2>\n<p>En saccharomyces cerevisiae increments en la osmolaritat extracel-lular s\u00f3n detectats per la via de mapk de hog. La via de hog es la hom\u00ed\u00b2loga funcional de les mapks activades per estr\u00e9s en mam\u00edfers p38 i jnk. Publicacions recents han mostrat que la mapk hog1, l\u00c2\u00bfelement central de la via, pot regular diferents processos, com el cicle cel-lular, l\u00c2\u00bfadaptaci\u00f3 metab\u00ed\u00b2lica o la regulaci\u00f3 de l\u00c2\u00bfexpressi\u00f3 g\u00e9nica. Al comen\u00ed\u00a7ament d\u00c2\u00bfaquest treball, els mecanismes mitjan\u00ed\u00a7ant els cuals hog1 estava controlant l\u00c2\u00bfexpressi\u00f3 g\u00e9nica eren desconeguts perqu\u00e9 els factors de transcripci\u00f3 que estaven sota el control de la mapk no estaven ben caracteritzats. El nostre objectiu va ser la identificaci\u00f3n de nous factors de transcripci\u00f3 sota el control de hog1. Amb aquest objectiu, es va disenyar un screening gen\u00e9tic per identificar nous elements sota el control de la mapk, on es va identificar smp1. Smp1 codifica per un factor de transcripci\u00f3 de tipus mef2c. La seva sobreexpressi\u00f3 indu\u00ed\u00afa la resposta d\u00c2\u00bfalguns gens que responen a situacions d\u00c2\u00bfosmostr\u00e9s, alhora que les c\u00e9lul-les smp1 mostren defici\u00e9ncies en la seva expressi\u00f3. Els assajos de coimmunoprecipitaci\u00f3, van mostra que smp1 interaccionava amb hog1. A m\u00e9s, els experiments d fosforilaci\u00f3 in vivo i in vitro vam mostrar que smp1 era fosforilat per la mapk, el que regulava la seva activitat transcripcional.  d\u00c2\u00bfaltra banda, estudis d\u00c2\u00bfexpressi\u00f3 mitjan\u00ed\u00a7ant microarrays van posar de manifest, que el transportador de glucosa de baixa afinitat hxt1 era indu\u00ed\u00aft despr\u00e9s d\u00c2\u00bfun estr\u00e9s osm\u00ed\u00b2tic de forma hog1 depenent. El nostre treball afegeix noves dades sobre la regulaci\u00f3 del promotor d\u00c2\u00bfaquest gen. Aix\u00ed, mostrem que no nom\u00e9s \u00e9s indu\u00ed\u00aft en pres\u00e9ncia de glucosa per l\u00c2\u00bfactivaci\u00f3 d\u00c2\u00bfuna via de senyalitzaci\u00f3 depenent de la glucosa, sin\u00f3 que la via de hog \u00e9s necess\u00ed\u00a0ria per la seva trancripci\u00f3 tant en pres\u00e9ncia de glucosa com en pres\u00e9ncia de glucosa i estr\u00e9s osm\u00ed\u00b2tic. La via de ho<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Transcription factors under the control of the yeast hog1 mapk<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Transcription factors under the control of the yeast hog1 mapk <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Laura Casadom\u00e9 Burriel <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Pompeu fabra<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/03\/2005<\/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>Francesc Posas Garriga<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: joaqu\u00edn Ari\u00f1o carmona <\/li>\n<li>Antonio Garcia de herreros madue\u00f1o (vocal)<\/li>\n<li>Jos\u00e9 Ayte del olmo (vocal)<\/li>\n<li>benjam\u00ed Pi\u00f1a cap\u00f3 (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Laura Casadom\u00e9 Burriel En saccharomyces cerevisiae increments en la osmolaritat extracel-lular s\u00f3n detectats per la via de 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