1zkk

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[[Image:1zkk.png|left|200px]]
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==Crystal structure of hSET8 in ternary complex with H4 peptide (16-24) and AdoHcy==
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<StructureSection load='1zkk' size='340' side='right' caption='[[1zkk]], [[Resolution|resolution]] 1.45&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1zkk]] 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=1ZKK OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ZKK FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SAH:S-ADENOSYL-L-HOMOCYSTEINE'>SAH</scene><br>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SET8, PRSET7, SET07 ([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>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Histone-lysine_N-methyltransferase Histone-lysine N-methyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.1.1.43 2.1.1.43] </span></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=1zkk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zkk OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1zkk RCSB], [http://www.ebi.ac.uk/pdbsum/1zkk 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/zk/1zkk_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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SET8 (also known as PR-SET7) is a histone H4-Lys-20-specific methyltransferase that is implicated in cell-cycle-dependent transcriptional silencing and mitotic regulation in metazoans. Herein we report the crystal structure of human SET8 (hSET8) bound to a histone H4 peptide bearing Lys-20 and the product cofactor S-adenosylhomocysteine. Histone H4 intercalates in the substrate-binding cleft as an extended parallel beta-strand. Residues preceding Lys-20 in H4 engage in an extensive array of salt bridge, hydrogen bond, and van der Waals interactions with hSET8, while the C-terminal residues bind through predominantly hydrophobic interactions. Mutational analysis of both the substrate-binding cleft and histone H4 reveals that interactions with residues in the N and C termini of the H4 peptide are critical for conferring substrate specificity. Finally, analysis of the product specificity indicates that hSET8 is a monomethylase, consistent with its role in the maintenance of Lys-20 monomethylation during cell division.
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{{STRUCTURE_1zkk| PDB=1zkk | SCENE= }}
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Structural and functional analysis of SET8, a histone H4 Lys-20 methyltransferase.,Couture JF, Collazo E, Brunzelle JS, Trievel RC Genes Dev. 2005 Jun 15;19(12):1455-65. Epub 2005 Jun 2. PMID:15933070<ref>PMID:15933070</ref>
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===Crystal structure of hSET8 in ternary complex with H4 peptide (16-24) and AdoHcy===
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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_15933070}}
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==See Also==
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*[[Histone methyltransferase|Histone methyltransferase]]
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==About this Structure==
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== References ==
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[[1zkk]] 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=1ZKK OCA].
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<references/>
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__TOC__
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==Reference==
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</StructureSection>
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<ref group="xtra">PMID:015933070</ref><references group="xtra"/>
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[[Category: Histone-lysine N-methyltransferase]]
[[Category: Histone-lysine N-methyltransferase]]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]

Revision as of 20:19, 29 September 2014

Crystal structure of hSET8 in ternary complex with H4 peptide (16-24) and AdoHcy

1zkk, resolution 1.45Å

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