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2rjf

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{{STRUCTURE_2rjf| PDB=2rjf | SCENE= }}
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==Crystal structure of L3MBTL1 in complex with H4K20Me2 (residues 12-30), orthorhombic form I==
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===Crystal structure of L3MBTL1 in complex with H4K20Me2 (residues 12-30), orthorhombic form I===
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<StructureSection load='2rjf' size='340' side='right' caption='[[2rjf]], [[Resolution|resolution]] 2.05&Aring;' scene=''>
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{{ABSTRACT_PUBMED_18026117}}
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2rjf]] is a 5 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=2RJF OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2RJF FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MLY:N-DIMETHYL-LYSINE'>MLY</scene></td></tr>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2pqw|2pqw]], [[2rjc|2rjc]], [[2rjd|2rjd]], [[2rje|2rje]]</td></tr>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">L3MBTL, KIAA0681, L3MBT ([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><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2rjf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2rjf OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2rjf RCSB], [http://www.ebi.ac.uk/pdbsum/2rjf 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/rj/2rjf_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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Crystal structures of the L3MBTL1 MBT repeats in complex with histone H4 peptides dimethylated on Lys20 (H4K20me2) show that only the second of the three MBT repeats can bind mono- and dimethylated histone peptides. Its binding pocket has similarities to that of 53BP1 and is able to recognize the degree of histone lysine methylation. An unexpected mode of peptide-mediated dimerization suggests a possible mechanism for chromatin compaction by L3MBTL1.
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==Function==
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L3MBTL1 recognition of mono- and dimethylated histones.,Min J, Allali-Hassani A, Nady N, Qi C, Ouyang H, Liu Y, MacKenzie F, Vedadi M, Arrowsmith CH Nat Struct Mol Biol. 2007 Dec;14(12):1229-30. Epub 2007 Nov 18. PMID:18026117<ref>PMID:18026117</ref>
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[[http://www.uniprot.org/uniprot/LMBL1_HUMAN LMBL1_HUMAN]] Polycomb group (PcG) protein that specifically recognizes and binds mono- and dimethyllysine residues on target proteins, therey acting as a 'reader' of a network of post-translational modifications. PcG proteins maintain the transcriptionally repressive state of genes: acts as a chromatin compaction factor by recognizing and binding mono- and dimethylated histone H1b/HIST1H1E at 'Lys-26' (H1bK26me1 and H1bK26me2) and histone H4 at 'Lys-20' (H4K20me1 and H4K20me2), leading to condense chromatin and repress transcription. Recognizes and binds p53/TP53 monomethylated at 'Lys-382', leading to repress p53/TP53-target genes. Also recognizes and binds RB1/RB monomethylated at 'Lys-860'. Participates in the ETV6-mediated repression. Probably plays a role in cell proliferation. Overexpression induces multinucleated cells, suggesting that it is required to accomplish normal mitosis.<ref>PMID:17540172</ref> <ref>PMID:18408754</ref> <ref>PMID:20870719</ref> <ref>PMID:20870725</ref>
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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[[2rjf]] is a 5 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=2RJF OCA].
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</div>
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:018026117</ref><references group="xtra"/><references/>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Allali-Hassani, A.]]
[[Category: Allali-Hassani, A.]]

Revision as of 04:16, 3 October 2014

Crystal structure of L3MBTL1 in complex with H4K20Me2 (residues 12-30), orthorhombic form I

2rjf, resolution 2.05Å

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