{"id":50904,"date":"2024-09-10T13:50:29","date_gmt":"2024-09-10T11:50:29","guid":{"rendered":"https:\/\/www.ub.edu\/in2ub\/?p=50904"},"modified":"2024-09-10T13:50:29","modified_gmt":"2024-09-10T11:50:29","slug":"se-describe-una-nueva-bioquimica-para-el-arn-a-bajas-temperaturas","status":"publish","type":"post","link":"https:\/\/www.ub.edu\/in2ub\/es\/se-describe-una-nueva-bioquimica-para-el-arn-a-bajas-temperaturas\/","title":{"rendered":"Se describe una nueva bioqu\u00edmica para el ARN a bajas temperaturas"},"content":{"rendered":"<p>Un equipo de la UB describe una nueva bioqu\u00edmica para el ARN a bajas temperaturas. En este trabajo el equipo ha utilizado el despliegue mec\u00e1nico del ARN para entender precisamente las formas diversas que adopta el ARN al plegarse sobre s\u00ed mismo. El estudio, liderado por el Prof.\u00a0 F\u00e8lix Ritort, <a href=\"https:\/\/www.ub.edu\/in2ub\/grup-de-recerca\/biomolecule-and-small-system-physics\/\" target=\"_blank\" rel=\"noopener\">The Small Biosystems Lab<\/a> y publicado en la revista\u00a0<a href=\"https:\/\/www.pnas.org\/doi\/10.1073\/pnas.2408313121\"><em>Proceedings of the National Academy of Sciences<\/em><\/a> (PNAS) describe por primera vez c\u00f3mo el proceso de plegamiento del ARN a bajas temperaturas puede abrir una perspectiva innovadora sobre la bioqu\u00edmica primordial y la evoluci\u00f3n de la vida en el planeta. El Prof. F\u00e8lix Ritort nos detalla: \u00ablas estructuras plegadas de las mol\u00e9culas biol\u00f3gicas, del ADN al ARN y las prote\u00ednas, determinan su acci\u00f3n biol\u00f3gica. Sin estructura no hay funci\u00f3n, y sin funci\u00f3n no hay vida\u00bb.<\/p>\n<p>Rissone, P.; Severino, A.; Pastor, I.; Ritort, F. \u00abUniversal cold RNA phase transitions\u00bb.\u00a0<em>Proceedings of the National Academy of Sciences\u00a0<\/em>(PNAS), August 2024. DOI:\u00a0<a href=\"https:\/\/doi.org\/10.1073\/pnas.2408313121\" target=\"_blank\" rel=\"noopener\">10.1073\/pnas.240831312<\/a><\/p>\n<p><strong>Leer m\u00e1s- Fuente: <a href=\"https:\/\/web.ub.edu\/es\/web\/actualitat\/w\/nueva-bioquimica-arn\" target=\"_blank\" rel=\"noopener\">Noticias UB<\/a><\/strong><\/p>\n<p>Imagen: La imagen muestra una representaci\u00f3n art\u00edstica de la dependencia de la temperatura del paisaje de energ\u00eda libre (FEL) de plegamiento del ARN. Los autores demostraron que los ARN experimentan una transici\u00f3n de fase en fr\u00edo y se pliegan mal debido a que el FEL cambia con la temperatura. Al bajar la temperatura, el paisaje des\u00e9rtico en el que el sistema encuentra f\u00e1cilmente el m\u00ednimo global de energ\u00eda para plegarse en la horquilla nativa da paso a desfiladeros separados por altas barreras. El sistema queda atrapado en estos m\u00ednimos locales que dan lugar a diversas conformaciones mal plegadas. Imagen: Paolo Rissone<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un equipo de la UB describe una nueva bioqu\u00edmica para el ARN a bajas temperaturas. En este trabajo el equipo ha utilizado el despliegue mec\u00e1nico del ARN para entender precisamente las formas diversas que adopta el ARN al plegarse sobre s\u00ed mismo. El estudio, liderado por el Prof.\u00a0 F\u00e8lix Ritort, The Small Biosystems Lab y&#8230;<\/p>\n","protected":false},"author":2,"featured_media":50902,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Se describe una nueva bioqu\u00edmica para el ARN a bajas temperaturas - IN\u00b2UB<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ub.edu\/in2ub\/es\/se-describe-una-nueva-bioquimica-para-el-arn-a-bajas-temperaturas\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Se describe una nueva bioqu\u00edmica para el ARN a bajas temperaturas - IN\u00b2UB\" \/>\n<meta property=\"og:description\" content=\"Un equipo de la UB describe una nueva bioqu\u00edmica para el ARN a bajas temperaturas. 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