2kvm

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{{Seed}}
 
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[[Image:2kvm.jpg|left|200px]]
 
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==Solution structure of the CBX7 chromodomain in complex with a H3K27me2 peptide==
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The line below this paragraph, containing "STRUCTURE_2kvm", creates the "Structure Box" on the page.
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<StructureSection load='2kvm' size='340' side='right'caption='[[2kvm]]' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[2kvm]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2KVM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2KVM FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR, 20 models</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MLY:N-DIMETHYL-LYSINE'>MLY</scene></td></tr>
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{{STRUCTURE_2kvm| PDB=2kvm | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2kvm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2kvm OCA], [https://pdbe.org/2kvm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2kvm RCSB], [https://www.ebi.ac.uk/pdbsum/2kvm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2kvm ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CBX7_MOUSE CBX7_MOUSE] Component of a Polycomb group (PcG) multiprotein PRC1-like complex, a complex class required to maintain the transcriptionally repressive state of many genes, including Hox genes, throughout development. PcG PRC1 complex acts via chromatin remodeling and modification of histones; it mediates monoubiquitination of histone H2A 'Lys-119', rendering chromatin heritably changed in its expressibility. Promotes histone H3 trimethylation at 'Lys-9' (H3K9me3). Binds to histone H3 trimethylated 'Lys-9' (H3K9me3) or at 'Lys-27' (H3K27me3). May possibly also bind trimethylated lysine residues in other proteins (in vitro). Binds non-coding, single-stranded RNA. Regulator of cellular lifespan by maintaining the repression of CDKN2A, but not by inducing telomerase activity.<ref>PMID:16537902</ref> <ref>PMID:20541999</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/kv/2kvm_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2kvm ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Expression of the INK4b/ARF/INK4a tumor suppressor locus in normal and cancerous cell growth is controlled by methylation of histone H3 at lysine 27 (H3K27me) as directed by the Polycomb group proteins. The antisense noncoding RNA ANRIL of the INK4b/ARF/INK4a locus is also important for expression of the protein-coding genes in cis, but its mechanism has remained elusive. Here we report that chromobox 7 (CBX7) within the polycomb repressive complex 1 binds to ANRIL, and both CBX7 and ANRIL are found at elevated levels in prostate cancer tissues. In concert with H3K27me recognition, binding to RNA contributes to CBX7 function, and disruption of either interaction impacts the ability of CBX7 to repress the INK4b/ARF/INK4a locus and control senescence. Structure-guided analysis reveals the molecular interplay between noncoding RNA and H3K27me as mediated by the conserved chromodomain. Our study suggests a mechanism by which noncoding RNA participates directly in epigenetic transcriptional repression.
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===Solution structure of the CBX7 chromodomain in complex with a H3K27me2 peptide===
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Molecular interplay of the noncoding RNA ANRIL and methylated histone H3 lysine 27 by polycomb CBX7 in transcriptional silencing of INK4a.,Yap KL, Li S, Munoz-Cabello AM, Raguz S, Zeng L, Mujtaba S, Gil J, Walsh MJ, Zhou MM Mol Cell. 2010 Jun 11;38(5):662-74. PMID:20541999<ref>PMID:20541999</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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The line below this paragraph, {{ABSTRACT_PUBMED_20541999}}, adds the Publication Abstract to the page
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<div class="pdbe-citations 2kvm" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 20541999 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_20541999}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Large Structures]]
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2KVM is a 2 chains structure with sequences from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2KVM OCA].
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==Reference==
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<ref group="xtra">PMID:20541999</ref><references group="xtra"/>
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[[Category: Mus musculus]]
[[Category: Mus musculus]]
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[[Category: Yap, K L.]]
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[[Category: Yap KL]]
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[[Category: Zeng, L.]]
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[[Category: Zeng L]]
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[[Category: Zhou, M.]]
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[[Category: Zhou M]]
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[[Category: Chromatin regulator]]
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[[Category: Chromatin-binding]]
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[[Category: Chromobox]]
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[[Category: Histone modification]]
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[[Category: Lysine methylation]]
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[[Category: Nucleus]]
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[[Category: Polycomb]]
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[[Category: Repressor]]
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[[Category: Transcription]]
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[[Category: Transcription regulation]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jun 30 13:44:07 2010''
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Current revision

Solution structure of the CBX7 chromodomain in complex with a H3K27me2 peptide

PDB ID 2kvm

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OCA

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