2apo

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[[Image:2apo.gif|left|200px]]
[[Image:2apo.gif|left|200px]]
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{{Structure
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|PDB= 2apo |SIZE=350|CAPTION= <scene name='initialview01'>2apo</scene>, resolution 1.95&Aring;
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The line below this paragraph, containing "STRUCTURE_2apo", creates the "Structure Box" on the page.
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|LIGAND= <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene>
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|GENE= truB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2190 Methanocaldococcus jannaschii]), NOP10 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2190 Methanocaldococcus jannaschii])
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{{STRUCTURE_2apo| PDB=2apo | SCENE= }}
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2apo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2apo OCA], [http://www.ebi.ac.uk/pdbsum/2apo PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2apo RCSB]</span>
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'''Crystal Structure of the Methanococcus jannaschii Cbf5 Nop10 Complex'''
'''Crystal Structure of the Methanococcus jannaschii Cbf5 Nop10 Complex'''
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[[Category: Reichow, S L.]]
[[Category: Reichow, S L.]]
[[Category: Varani, G.]]
[[Category: Varani, G.]]
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[[Category: box h/aca]]
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[[Category: Box h/aca]]
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[[Category: protein-protein complex]]
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[[Category: Protein-protein complex]]
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[[Category: pseudouridine synthase]]
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[[Category: Pseudouridine synthase]]
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[[Category: pua domain]]
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[[Category: Pua domain]]
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[[Category: rna modification]]
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[[Category: Rna modification]]
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[[Category: snornp]]
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[[Category: Snornp]]
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[[Category: zinc ribbon]]
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[[Category: Zinc ribbon]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 19:19:21 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 01:55:39 2008''
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Revision as of 16:19, 3 May 2008

Image:2apo.gif

Template:STRUCTURE 2apo

Crystal Structure of the Methanococcus jannaschii Cbf5 Nop10 Complex


Overview

Box H/ACA ribonucleoprotein particles (RNPs) catalyze RNA pseudouridylation and direct processing of ribosomal RNA, and are essential architectural components of vertebrate telomerases. H/ACA RNPs comprise four proteins and a multihelical RNA. Two proteins, Cbf5 and Nop10, suffice for basal enzymatic activity in an archaeal in vitro system. We now report their cocrystal structure at 1.95-A resolution. We find that archaeal Cbf5 can assemble with yeast Nop10 and with human telomerase RNA, consistent with the high sequence identity of the RNP components between archaea and eukarya. Thus, the Cbf5-Nop10 architecture is phylogenetically conserved. The structure shows how Nop10 buttresses the active site of Cbf5, and it reveals two basic troughs that bidirectionally extend the active site cleft. Mutagenesis results implicate an adjacent basic patch in RNA binding. This tripartite RNA-binding surface may function as a molecular bracket that organizes the multihelical H/ACA and telomerase RNAs.

About this Structure

2APO is a Protein complex structure of sequences from Methanocaldococcus jannaschii. Full crystallographic information is available from OCA.

Reference

The Cbf5-Nop10 complex is a molecular bracket that organizes box H/ACA RNPs., Hamma T, Reichow SL, Varani G, Ferre-D'Amare AR, Nat Struct Mol Biol. 2005 Dec;12(12):1101-7. Epub 2005 Nov 15. PMID:16286935 Page seeded by OCA on Sat May 3 19:19:21 2008

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