3nvi: Difference between revisions
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==Structure of N-terminal truncated Nop56/58 bound with L7Ae and box C/D RNA== | ==Structure of N-terminal truncated Nop56/58 bound with L7Ae and box C/D RNA== | ||
<StructureSection load='3nvi' size='340' side='right' caption='[[3nvi]], [[Resolution|resolution]] 2.71Å' scene=''> | <StructureSection load='3nvi' size='340' side='right' caption='[[3nvi]], [[Resolution|resolution]] 2.71Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[3nvi]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/ | <table><tr><td colspan='2'>[[3nvi]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/ ] and [http://en.wikipedia.org/wiki/Pyrfu Pyrfu]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3NVI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3NVI FirstGlance]. <br> | ||
</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3nmu|3nmu]], [[3nvk|3nvk]], [[3nvm|3nvm]]</td></tr> | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3nmu|3nmu]], [[3nvk|3nvk]], [[3nvm|3nvm]]</td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PF0060 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=186497 | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PF0060 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=186497 PYRFU]), PF1367, rpl7ae ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=186497 PYRFU])</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3nvi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3nvi OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3nvi RCSB], [http://www.ebi.ac.uk/pdbsum/3nvi PDBsum]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3nvi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3nvi OCA], [http://pdbe.org/3nvi PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3nvi RCSB], [http://www.ebi.ac.uk/pdbsum/3nvi PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3nvi ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 3nvi" style="background-color:#fffaf0;"></div> | |||
==See Also== | ==See Also== | ||
*[[Kink-turn motif|Kink-turn motif]] | |||
*[[Ribosomal protein L7|Ribosomal protein L7]] | *[[Ribosomal protein L7|Ribosomal protein L7]] | ||
*[[User:Wayne Decatur/kink-turn motif|User:Wayne Decatur/kink-turn motif]] | |||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Pyrfu]] | ||
[[Category: Li, H]] | [[Category: Li, H]] | ||
[[Category: Wang, R]] | [[Category: Wang, R]] | ||
Revision as of 02:25, 6 August 2016
Structure of N-terminal truncated Nop56/58 bound with L7Ae and box C/D RNAStructure of N-terminal truncated Nop56/58 bound with L7Ae and box C/D RNA
Structural highlights
Function[RL7A_PYRFU] Multifunctional RNA-binding protein that recognizes the K-turn motif in ribosomal RNA, box H/ACA, box C/D and box C'/D' sRNAs (By similarity). Publication Abstract from PubMedBox C/D small nucleolar and Cajal body ribonucleoprotein particles (sno/scaRNPs) direct site-specific 2'-O-methylation of ribosomal and spliceosomal RNAs and are critical for gene expression. Here we report crystal structures of an archaeal box C/D RNP containing three core proteins (fibrillarin, Nop56/58, and L7Ae) and a half-mer box C/D guide RNA paired with a substrate RNA. The structure reveals a guide-substrate RNA duplex orientation imposed by a composite protein surface and the conserved GAEK motif of Nop56/58. Molecular modeling supports a dual C/D RNP structure that closely mimics that recently visualized by electron microscopy. The substrate-bound dual RNP model predicts an asymmetric protein distribution between the RNP that binds and methylates the substrate RNA. The predicted asymmetric nature of the holoenzyme is consistent with previous biochemical data on RNP assembly and provides a simple solution for accommodating base-pairing between the C/D guide RNA and large ribosomal and spliceosomal substrate RNAs. Structural basis for substrate placement by an archaeal box C/D ribonucleoprotein particle.,Xue S, Wang R, Yang F, Terns RM, Terns MP, Zhang X, Maxwell ES, Li H Mol Cell. 2010 Sep 24;39(6):939-49. PMID:20864039[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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