3s8p

From Proteopedia

(Difference between revisions)

Revision as of 05:55, 25 December 2014

Crystal Structure of the SET Domain of Human Histone-Lysine N-Methyltransferase SUV420H1 In Complex With S-Adenosyl-L-Methionine

Structural highlights

3s8p is a 2 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
NonStd Res:
Gene:	CGI-85, KMT5B, SUV420H1 (HUMAN)
Activity:	Histone-lysine N-methyltransferase, with EC number 2.1.1.43
Resources:	FirstGlance, OCA, RCSB, PDBsum

Function

[SV421_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).

Publication Abstract from PubMed

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.

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^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Wu H, Siarheyeva A, Zeng H, Lam R, Dong A, Wu XH, Li Y, Schapira M, Vedadi M, Min J. Crystal structures of the human histone H4K20 methyltransferases SUV420H1 and SUV420H2. FEBS Lett. 2013 Nov 29;587(23):3859-68. PMID:24396869

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3s8p"

@@ Line 9: / Line 9: @@
 <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=3s8p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3s8p OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3s8p RCSB], [http://www.ebi.ac.uk/pdbsum/3s8p PDBsum]</span></td></tr>
 </table>
+== Function ==
+[[http://www.uniprot.org/uniprot/SV421_HUMAN SV421_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).
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==

3s8p

From Proteopedia

Revision as of 05:55, 25 December 2014

Crystal Structure of the SET Domain of Human Histone-Lysine N-Methyltransferase SUV420H1 In Complex With S-Adenosyl-L-Methionine

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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