2vpd

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{{STRUCTURE_2vpd| PDB=2vpd | SCENE= }}
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==DECODING OF METHYLATED HISTONE H3 TAIL BY THE PYGO-BCL9 WNT SIGNALING COMPLEX==
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===DECODING OF METHYLATED HISTONE H3 TAIL BY THE PYGO-BCL9 WNT SIGNALING COMPLEX===
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<StructureSection load='2vpd' size='340' side='right' caption='[[2vpd]], [[Resolution|resolution]] 2.77&Aring;' scene=''>
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{{ABSTRACT_PUBMED_18498752}}
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2vpd]] is a 4 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=2VPD OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2VPD FirstGlance]. <br>
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==Disease==
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene><br>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2vp7|2vp7]], [[2vpb|2vpb]], [[2vpe|2vpe]], [[2vpg|2vpg]]</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=2vpd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2vpd OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2vpd RCSB], [http://www.ebi.ac.uk/pdbsum/2vpd PDBsum]</span></td></tr>
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<table>
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== Disease ==
[[http://www.uniprot.org/uniprot/BCL9_HUMAN BCL9_HUMAN]] Note=A chromosomal aberration involving BCL9 is found in a patient with precusor B-cell acute lymphoblastic leukemia (ALL). Translocation t(1;14)(q21;q32). This translocation leaves the coding region intact, but may have pathogenic effects due to alterations in the expression level of BCL9. Several cases of translocations within the 3'-UTR of BCL9 have been found in B-cell malignancies.
[[http://www.uniprot.org/uniprot/BCL9_HUMAN BCL9_HUMAN]] Note=A chromosomal aberration involving BCL9 is found in a patient with precusor B-cell acute lymphoblastic leukemia (ALL). Translocation t(1;14)(q21;q32). This translocation leaves the coding region intact, but may have pathogenic effects due to alterations in the expression level of BCL9. Several cases of translocations within the 3'-UTR of BCL9 have been found in B-cell malignancies.
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== Function ==
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[[http://www.uniprot.org/uniprot/BCL9_HUMAN BCL9_HUMAN]] Involved in signal transduction through the Wnt pathway. Promotes beta-catenin's transcriptional activity (By similarity).<ref>PMID:11955446</ref>
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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/vp/2vpd_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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Pygo and BCL9/Legless transduce the Wnt signal by promoting the transcriptional activity of beta-catenin/Armadillo in normal and malignant cells. We show that human and Drosophila Pygo PHD fingers associate with their cognate HD1 domains from BCL9/Legless to bind specifically to the histone H3 tail methylated at lysine 4 (H3K4me). The crystal structures of ternary complexes between PHD, HD1, and two different H3K4me peptides reveal a unique mode of histone tail recognition: efficient histone binding requires HD1 association, and the PHD-HD1 complex binds preferentially to H3K4me2 while displaying insensitivity to methylation of H3R2. Therefore, this is a prime example of histone tail binding by a PHD finger (of Pygo) being modulated by a cofactor (BCL9/Legless). Rescue experiments in Drosophila indicate that Wnt signaling outputs depend on histone decoding. The specificity of this process provided by the Pygo-BCL9/Legless complex suggests that this complex facilitates an early step in the transition from gene silence to Wnt-induced transcription.
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==Function==
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Decoding of methylated histone H3 tail by the Pygo-BCL9 Wnt signaling complex.,Fiedler M, Sanchez-Barrena MJ, Nekrasov M, Mieszczanek J, Rybin V, Muller J, Evans P, Bienz M Mol Cell. 2008 May 23;30(4):507-18. PMID:18498752<ref>PMID:18498752</ref>
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[[http://www.uniprot.org/uniprot/BCL9_HUMAN BCL9_HUMAN]] Involved in signal transduction through the Wnt pathway. Promotes beta-catenin's transcriptional activity (By similarity).<ref>PMID:11955446</ref>
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==About this Structure==
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[[2vpd]] is a 4 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=2VPD OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<ref group="xtra">PMID:018498752</ref><references group="xtra"/><references/>
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</div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Bienz, M.]]
[[Category: Bienz, M.]]

Revision as of 01:57, 1 October 2014

DECODING OF METHYLATED HISTONE H3 TAIL BY THE PYGO-BCL9 WNT SIGNALING COMPLEX

2vpd, resolution 2.77Å

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