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3svm

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Revision as of 20:26, 4 August 2016

Human MPP8 - human DNMT3AK47me2 peptide

Structural highlights

3svm 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.
NonStd Res:
Related:	3qo2, 3swc, 3sw9
Gene:	MPHOSPH8, MPP8 (HUMAN)
Activity:	DNA (cytosine-5-)-methyltransferase, with EC number 2.1.1.37
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[MPP8_HUMAN] Involved in transcriptional regulation. Specifically recognizes and binds methylated 'Lys-9' of histone H3 (H3K9me) and promotes DNA methylation by recruiting DNMT3A to target CpG sites; these can be situated within the coding region of the gene. Mediates down-regulation of CDH1 expression.^[1] [DNM3A_HUMAN] Required for genome-wide de novo methylation and is essential for the establishment of DNA methylation patterns during development. DNA methylation is coordinated with methylation of histones. It modifies DNA in a non-processive manner and also methylates non-CpG sites. May preferentially methylate DNA linker between 2 nucleosomal cores and is inhibited by histone H1. Plays a role in paternal and maternal imprinting. Required for methylation of most imprinted loci in germ cells. Acts as a transcriptional corepressor for ZNF238. Can actively repress transcription through the recruitment of HDAC activity (By similarity).^[2]

Publication Abstract from PubMed

DNA CpG methylation and histone H3 lysine 9 (H3K9) methylation are two major repressive epigenetic modifications, and these methylations are positively correlated with one another in chromatin. Here we show that G9a or G9a-like protein (GLP) dimethylate the amino-terminal lysine 44 (K44) of mouse Dnmt3a (equivalent to K47 of human DNMT3A) in vitro and in cells overexpressing G9a or GLP. The chromodomain of MPP8 recognizes the dimethylated Dnmt3aK44me2. MPP8 also interacts with self-methylated GLP in a methylation-dependent manner. The MPP8 chromodomain forms a dimer in solution and in crystals, suggesting that a dimeric MPP8 molecule could bridge the methylated Dnmt3a and GLP, resulting in a silencing complex of Dnmt3a-MPP8-GLP/G9a on chromatin templates. Together, these findings provide a molecular explanation, at least in part, for the co-occurrence of DNA methylation and H3K9 methylation in chromatin.

MPP8 mediates the interactions between DNA methyltransferase Dnmt3a and H3K9 methyltransferase GLP/G9a.,Chang Y, Sun L, Kokura K, Horton JR, Fukuda M, Espejo A, Izumi V, Koomen JM, Bedford MT, Zhang X, Shinkai Y, Fang J, Cheng X Nat Commun. 2011 Nov 15;2:533. doi: 10.1038/ncomms1549. PMID:22086334^[3]

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

References

↑ Kokura K, Sun L, Bedford MT, Fang J. Methyl-H3K9-binding protein MPP8 mediates E-cadherin gene silencing and promotes tumour cell motility and invasion. EMBO J. 2010 Nov 3;29(21):3673-87. doi: 10.1038/emboj.2010.239. Epub 2010 Sep 24. PMID:20871592 doi:http://dx.doi.org/10.1038/emboj.2010.239
↑ Vire E, Brenner C, Deplus R, Blanchon L, Fraga M, Didelot C, Morey L, Van Eynde A, Bernard D, Vanderwinden JM, Bollen M, Esteller M, Di Croce L, de Launoit Y, Fuks F. The Polycomb group protein EZH2 directly controls DNA methylation. Nature. 2006 Feb 16;439(7078):871-4. Epub 2005 Dec 14. PMID:16357870 doi:10.1038/nature04431
↑ Chang Y, Sun L, Kokura K, Horton JR, Fukuda M, Espejo A, Izumi V, Koomen JM, Bedford MT, Zhang X, Shinkai Y, Fang J, Cheng X. MPP8 mediates the interactions between DNA methyltransferase Dnmt3a and H3K9 methyltransferase GLP/G9a. Nat Commun. 2011 Nov 15;2:533. doi: 10.1038/ncomms1549. PMID:22086334 doi:10.1038/ncomms1549

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

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

@@ Line 1: / Line 1: @@
 ==Human MPP8 - human DNMT3AK47me2 peptide==
 <StructureSection load='3svm' size='340' side='right' caption='[[3svm]], [[Resolution|resolution]] 2.31&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3svm]] is a 2 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=3SVM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3SVM FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3svm]] is a 2 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=3SVM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3SVM FirstGlance]. <br>
 </td></tr><tr id='NonStdRes'><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>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3qo2|3qo2]], [[3swc|3swc]], [[3sw9|3sw9]]</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MPHOSPH8, MPP8 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MPHOSPH8, MPP8 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/DNA_(cytosine-5-)-methyltransferase DNA (cytosine-5-)-methyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.1.1.37 2.1.1.37] </span></td></tr>
-<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=3svm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3svm OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3svm RCSB], [http://www.ebi.ac.uk/pdbsum/3svm PDBsum]</span></td></tr>
+<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=3svm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3svm OCA], [http://pdbe.org/3svm PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3svm RCSB], [http://www.ebi.ac.uk/pdbsum/3svm PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3svm ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 19: / Line 20: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 3svm" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Homo sapiens]]
+[[Category: Human]]
 [[Category: Chang, Y]]
 [[Category: Cheng, X]]

3svm

From Proteopedia

Revision as of 20:26, 4 August 2016

Human MPP8 - human DNMT3AK47me2 peptide

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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