Structural basis of assembly chaperone-mediated snRNP formation


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GRIMM, Clemens, Ashwin CHARI, Jann-Patrick PELZ, Jochen KUPER, Caroline KISKER, Kay DIEDERICHS, Holger STARK, Hermann SCHINDELIN, Utz FISCHER, 2013. Structural basis of assembly chaperone-mediated snRNP formation. In: Molecular Cell. 49(4), pp. 692-703. ISSN 1097-2765. eISSN 1097-4164

@article{Grimm2013-02-21Struc-24369, title={Structural basis of assembly chaperone-mediated snRNP formation}, year={2013}, doi={10.1016/j.molcel.2012.12.009}, number={4}, volume={49}, issn={1097-2765}, journal={Molecular Cell}, pages={692--703}, author={Grimm, Clemens and Chari, Ashwin and Pelz, Jann-Patrick and Kuper, Jochen and Kisker, Caroline and Diederichs, Kay and Stark, Holger and Schindelin, Hermann and Fischer, Utz} }

<rdf:RDF xmlns:rdf="" xmlns:bibo="" xmlns:dc="" xmlns:dcterms="" xmlns:xsd="" > <rdf:Description rdf:about=""> <dcterms:available rdf:datatype="">2014-02-28T23:25:07Z</dcterms:available> <dc:contributor>Chari, Ashwin</dc:contributor> <dc:language>eng</dc:language> <dc:contributor>Schindelin, Hermann</dc:contributor> <dc:contributor>Kuper, Jochen</dc:contributor> <dcterms:issued>2013-02-21</dcterms:issued> <dcterms:title>Structural basis of assembly chaperone-mediated snRNP formation</dcterms:title> <dc:contributor>Diederichs, Kay</dc:contributor> <dc:creator>Stark, Holger</dc:creator> <dcterms:abstract xml:lang="eng">Small nuclear ribonucleoproteins (snRNPs) represent key constituents of major and minor spliceosomes. snRNPs contain a common core, composed of seven Sm proteins bound to snRNA, which forms in a step-wise and factor-mediated reaction. The assembly chaperone pICln initially mediates the formation of an otherwise unstable pentameric Sm protein unit. This so-called 6S complex docks subsequently onto the SMN complex, which removes pICln and enables the transfer of pre-assembled Sm proteins onto snRNA. X-ray crystallography and electron microscopy was used to investigate the structural basis of snRNP assembly. The 6S complex structure identifies pICln as an Sm protein mimic, which enables the topological organization of the Sm pentamer in a closed ring. A second structure of 6S bound to the SMN complex components SMN and Gemin2 uncovers a plausible mechanism of pICln elimination and Sm protein activation for snRNA binding. Our studies reveal how assembly factors facilitate formation of RNA-protein complexes in vivo.</dcterms:abstract> <dc:contributor>Grimm, Clemens</dc:contributor> <dcterms:rights rdf:resource=""/> <dcterms:bibliographicCitation>Molecular Cell ; 49 (2013), 4. - S. 692-703</dcterms:bibliographicCitation> <dc:contributor>Pelz, Jann-Patrick</dc:contributor> <dc:contributor>Kisker, Caroline</dc:contributor> <dc:creator>Kisker, Caroline</dc:creator> <dc:creator>Fischer, Utz</dc:creator> <dc:contributor>Stark, Holger</dc:contributor> <dc:date rdf:datatype="">2013-09-11T09:24:13Z</dc:date> <dc:creator>Grimm, Clemens</dc:creator> <dc:creator>Pelz, Jann-Patrick</dc:creator> <dc:creator>Chari, Ashwin</dc:creator> <bibo:uri rdf:resource=""/> <dc:contributor>Fischer, Utz</dc:contributor> <dc:creator>Kuper, Jochen</dc:creator> <dc:creator>Diederichs, Kay</dc:creator> <dc:rights>deposit-license</dc:rights> <dc:creator>Schindelin, Hermann</dc:creator> </rdf:Description> </rdf:RDF>

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