Objetivo In all living cells, the important task of protein synthesis is carried out by the ribosome. A substantial amount of cellular energy and resources is utilized to manufacture ribosomal subunits. In contrast to prokaryotes, eukaryotic ribosome assembly requires a multitude of conserved non-ribosomal trans-acting factors, which transiently associate with pre-ribosomal particles at distinct assembly stages and perform specific maturation steps.Large-scale proteomic approaches in budding yeast, have rapidly expanded the inventory of trans-acting factors (~200). However, little is known regarding their precise site(s) of action and the role(s) of these factors during pre-ribosome assembly. Upon accomplishing their task, majority of the trans-acting factors, are typically released from maturing pre-ribosomes already in the nucleolus/nucleus. Strikingly, a handful of factors remain associated with pre-ribosomes and facilitate their export into the cytoplasm. Release of these factors constitutes “late cytoplasmic maturation events” which render exported pre-ribosomes translation competent. In this proposal we will exploit the powerful model organism budding yeast to:(1) Develop novel biochemical tools to elucidate the molecular environment of trans-acting factors on the surface of pre-ribosomal particles. These analyses will provide us a low-resolution biochemical map of a maturing pre-ribosome.(2) Exploit the powerful combination of genetic and high-throughput visual screening approaches in budding yeast to unravel novel “late cytoplasmic maturation steps” in the 60S biogenesis pathway.Together, my research proposal aims to contribute significantly to our current knowledge regarding the construction and nuclear export of eukaryotic pre-ribosomes. Our analysis will lead us to general principles that underlie the dynamic assembly/dissassembly of large macromolecular ribonucleo-protein complexes. Ámbito científico natural sciencesbiological sciencesbiochemistrybiomoleculesproteins Programa(s) FP7-IDEAS-ERC - Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Tema(s) ERC-SG-LS1 - ERC Starting Grant - Molecular and Structural Biology and Biochemistry Convocatoria de propuestas ERC-2010-StG_20091118 Consulte otros proyectos de esta convocatoria Régimen de financiación ERC-SG - ERC Starting Grant Institución de acogida EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH Aportación de la UE € 1 500 000,00 Dirección Raemistrasse 101 8092 Zuerich Suiza Ver en el mapa Región Schweiz/Suisse/Svizzera Zürich Zürich Tipo de actividad Higher or Secondary Education Establishments Contacto administrativo Vikram Govind Panse (Prof.) Investigador principal Vikram Govind Panse (Prof.) Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Coste total Sin datos Beneficiarios (1) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH Suiza Aportación de la UE € 1 500 000,00 Dirección Raemistrasse 101 8092 Zuerich Ver en el mapa Región Schweiz/Suisse/Svizzera Zürich Zürich Tipo de actividad Higher or Secondary Education Establishments Contacto administrativo Vikram Govind Panse (Prof.) Investigador principal Vikram Govind Panse (Prof.) Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Coste total Sin datos
