{"id":143167,"date":"1993-01-01T00:00:00","date_gmt":"1993-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/aislamiento-y-caracterizacion-bioquimica-de-proteinas-de-espermatozoides-de-cerdo-que-participan-en-la-interaccion-entre-gametos\/"},"modified":"1993-01-01T00:00:00","modified_gmt":"1993-01-01T00:00:00","slug":"aislamiento-y-caracterizacion-bioquimica-de-proteinas-de-espermatozoides-de-cerdo-que-participan-en-la-interaccion-entre-gametos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/quimica\/aislamiento-y-caracterizacion-bioquimica-de-proteinas-de-espermatozoides-de-cerdo-que-participan-en-la-interaccion-entre-gametos\/","title":{"rendered":"Aislamiento y caracterizacion bioquimica de proteinas de espermatozoides de cerdo que participan en la interaccion entre gametos."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Libia Sanz Sanz <\/strong><\/h2>\n<p>La presente tesis doctoral trata sobre la identificacion, aislamiento y caracterizacion funcional y bioquimica (estructura primaria) de proteinas de espermatozoides de cerdo que actuan de receptores primarios en la interaccion entre los gametos durante el proceso de fecundacion del ovulo. Dichas proteinas, cuya masa molecular es de 11-13 kda, tienen su origen biologico en secreciones de las glandulas sexuales secundarias y se adhieren a la cabeza del espermatozoide durante la eyaculacion. Su especificidad biologica consiste en la union de determinados carbohidratos, por lo que pueden considerarse lectinas. La estructura primaria de estas proteinas es 50% identica entre si, pero no presenta similitud con otras proteinas conocidas. Se trata, pues, de una nueva familia de proteinas, a la que se ha denominado con el nombre generico de \u00abespermadhesinas\u00bb.  las espermadhesinas son moleculas multifuncionales, que reconocen, aparte de carbohidratos de la zona pellucida, heparina y\/o inhibidores de serin-proteasas. Ello indica que ademas de su papel como receptores de adhesion, las espermadhesinas tambien deben jugar un importante papel durante la capacitacion de los espermatozoides.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Aislamiento y caracterizacion bioquimica de proteinas de espermatozoides de cerdo que participan en la interaccion entre gametos.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Aislamiento y caracterizacion bioquimica de proteinas de espermatozoides de cerdo que participan en la interaccion entre gametos. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Libia Sanz Sanz <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Complutense de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1993<\/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>Juan  Jose Calvete Chornet<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Francisco Gavilanes Franco <\/li>\n<li>Francisco Sanchez Madrid (vocal)<\/li>\n<li>Enrique Mendez Corman (vocal)<\/li>\n<li>Roberto Marco Cuellar (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Libia Sanz Sanz La presente tesis doctoral trata sobre la identificacion, aislamiento y caracterizacion funcional y bioquimica [&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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