3dm1

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[[Image:3dm1.png|left|200px]]
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==Crystal structure of the complex of human chromobox homolog 3 (CBX3) with peptide==
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<StructureSection load='3dm1' size='340' side='right' caption='[[3dm1]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3dm1]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3DM1 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3DM1 FirstGlance]. <br>
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</td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=M3L:N-TRIMETHYLLYSINE'>M3L</scene></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CBX3 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
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<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=3dm1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3dm1 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3dm1 RCSB], [http://www.ebi.ac.uk/pdbsum/3dm1 PDBsum]</span></td></tr>
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</table>
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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/dm/3dm1_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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/chain_selection.php?pdb_ID=2ata 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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BACKGROUND: HP1 proteins are highly conserved heterochromatin proteins, which have been identified to be structural adapters assembling a variety of macromolecular complexes involved in regulation of gene expression, chromatin remodeling and heterochromatin formation. Much evidence shows that HP1 proteins interact with numerous proteins including methylated histones, histone methyltransferases and so on. Cbx3 is one of the paralogues of HP1 proteins, which has been reported to specifically recognize trimethylated histone H3K9 mark, and a consensus binding motif has been defined for the Cbx3 chromodomain. METHODOLOGY/PRINCIPAL FINDINGS: Here, we found that the Cbx3 chromodomain can bind to H1K26me2 and G9aK185me3 with comparable binding affinities compared to H3K9me3. We also determined the crystal structures of the human Cbx3 chromodomain in complex with dimethylated histone H1K26 and trimethylated G9aK185 peptides, respectively. The complex structures unveil that the Cbx3 chromodomain specifically bind methylated histone H1K26 and G9aK185 through a conserved mechanism. CONCLUSIONS/SIGNIFICANCE: The Cbx3 chromodomain binds with comparable affinities to all of the methylated H3K9, H1K26 and G9aK185 peptides. It is suggested that Cbx3 may regulate gene expression via recognizing both histones and non-histone proteins.
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{{STRUCTURE_3dm1| PDB=3dm1 | SCENE= }}
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Structural basis of the chromodomain of Cbx3 bound to methylated peptides from histone h1 and G9a.,Ruan J, Ouyang H, Amaya MF, Ravichandran M, Loppnau P, Min J, Zang J PLoS One. 2012;7(4):e35376. doi: 10.1371/journal.pone.0035376. Epub 2012 Apr 13. PMID:22514736<ref>PMID:22514736</ref>
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===Crystal structure of the complex of human chromobox homolog 3 (CBX3) with peptide===
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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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{{ABSTRACT_PUBMED_22514736}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[3dm1]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3DM1 OCA].
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Amaya, M F.]]
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[[Category: Amaya, M F]]
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[[Category: Arrowsmith, C H.]]
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[[Category: Arrowsmith, C H]]
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[[Category: Bochkarev, A.]]
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[[Category: Bochkarev, A]]
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[[Category: Bountra, C.]]
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[[Category: Bountra, C]]
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[[Category: Edwards, A M.]]
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[[Category: Edwards, A M]]
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[[Category: Kozieradzki, I.]]
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[[Category: Kozieradzki, I]]
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[[Category: Loppnau, P.]]
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[[Category: Loppnau, P]]
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[[Category: Min, J.]]
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[[Category: Min, J]]
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[[Category: Ouyang, H.]]
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[[Category: Ouyang, H]]
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[[Category: Ravichandran, M.]]
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[[Category: Ravichandran, M]]
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[[Category: SGC, Structural Genomics Consortium.]]
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[[Category: Structural genomic]]
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[[Category: Weigelt, J.]]
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[[Category: Weigelt, J]]
[[Category: Chromatin regulator]]
[[Category: Chromatin regulator]]
[[Category: Chromobox homolog 3]]
[[Category: Chromobox homolog 3]]
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[[Category: Repressor]]
[[Category: Repressor]]
[[Category: Sgc]]
[[Category: Sgc]]
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[[Category: Structural genomic]]
 
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[[Category: Structural genomics consortium]]
 
[[Category: Transcription]]
[[Category: Transcription]]
[[Category: Transcription regulation]]
[[Category: Transcription regulation]]

Revision as of 08:03, 12 November 2014

Crystal structure of the complex of human chromobox homolog 3 (CBX3) with peptide

3dm1, resolution 2.40Å

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