3rq4

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{{STRUCTURE_3rq4| PDB=3rq4 | SCENE= }}
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==Crystal structure of suppressor of variegation 4-20 homolog 2==
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===Crystal structure of suppressor of variegation 4-20 homolog 2===
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<StructureSection load='3rq4' size='340' side='right' caption='[[3rq4]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
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{{ABSTRACT_PUBMED_24396869}}
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3rq4]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3RQ4 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3RQ4 FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=SAM:S-ADENOSYLMETHIONINE'>SAM</scene>, <scene name='pdbligand=UNX:UNKNOWN+ATOM+OR+ION'>UNX</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SUV420H2, KMT5C, PP7130 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
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<tr id='activity'><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 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=3rq4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3rq4 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3rq4 RCSB], [http://www.ebi.ac.uk/pdbsum/3rq4 PDBsum]</span></td></tr>
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</table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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SUV420H1 and SUV420H2 are two highly homologous enzymes that methylate lysine 20 of histone H4 (H4K20), a mark that has been implicated in transcriptional regulation. In this study, we present the high-resolution crystal structures of human SUV420H1 and SUV420H2 in complex with SAM, and report their substrate specificity. Both methyltransferases have a unique N-terminal domain and Zn-binding post-SET domain, and prefer the monomethylated histone H4K20 as a substrate in vitro. No histone H4K20 trimethylation activity was detected by our radioactivity-based assay for either enzyme, consistent with the presence of a conserved serine residue that forms a hydrogen bond with the target lysine side-chain and limits the methylation level.
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==Function==
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Crystal structures of the human histone H4K20 methyltransferases SUV420H1 and SUV420H2.,Wu H, Siarheyeva A, Zeng H, Lam R, Dong A, Wu XH, Li Y, Schapira M, Vedadi M, Min J FEBS Lett. 2013 Nov 29;587(23):3859-68. PMID:24396869<ref>PMID:24396869</ref>
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[[http://www.uniprot.org/uniprot/SV422_HUMAN SV422_HUMAN]] Histone methyltransferase that specifically trimethylates 'Lys-20' of histone H4. H4 'Lys-20' trimethylation represents a specific tag for epigenetic transcriptional repression. Mainly functions in pericentric heterochromatin regions, thereby playing a central role in the establishment of constitutive heterochromatin in these regions. SUV420H1 is targeted to histone H3 via its interaction with RB1 family proteins (RB1, RBL1 and RBL2) (By similarity).
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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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[[3rq4]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3RQ4 OCA].
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</div>
==See Also==
==See Also==
*[[Histone methyltransferase|Histone methyltransferase]]
*[[Histone methyltransferase|Histone methyltransferase]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:024396869</ref><references group="xtra"/><references/>
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__TOC__
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</StructureSection>
[[Category: Histone-lysine N-methyltransferase]]
[[Category: Histone-lysine N-methyltransferase]]
[[Category: Human]]
[[Category: Human]]
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[[Category: Arrowsmith, C H.]]
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[[Category: Arrowsmith, C H]]
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[[Category: Bountra, C.]]
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[[Category: Bountra, C]]
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[[Category: Dong, A.]]
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[[Category: Dong, A]]
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[[Category: Edwards, A M.]]
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[[Category: Edwards, A M]]
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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: SGC, Structural Genomics Consortium.]]
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[[Category: Structural genomic]]
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[[Category: Tempel, W.]]
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[[Category: Tempel, W]]
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[[Category: Weigelt, J.]]
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[[Category: Weigelt, J]]
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[[Category: Wu, H.]]
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[[Category: Wu, H]]
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[[Category: Zeng, H.]]
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[[Category: Zeng, H]]
[[Category: Sgc]]
[[Category: Sgc]]
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[[Category: Structural genomic]]
 
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[[Category: Structural genomics consortium]]
 
[[Category: Suppressor]]
[[Category: Suppressor]]
[[Category: Suv420h2]]
[[Category: Suv420h2]]
[[Category: Transferase]]
[[Category: Transferase]]
[[Category: Variegation 4-20 homolog 2]]
[[Category: Variegation 4-20 homolog 2]]

Revision as of 16:37, 21 December 2014

Crystal structure of suppressor of variegation 4-20 homolog 2

3rq4, resolution 1.80Å

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