2vp7: Difference between revisions

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==DECODING OF METHYLATED HISTONE H3 TAIL BY THE PYGO-BCL9 WNT SIGNALING COMPLEX==
 
==Decoding of methylated histone H3 tail by the Pygo-BCL9 Wnt signaling complex==
<StructureSection load='2vp7' size='340' side='right' caption='[[2vp7]], [[Resolution|resolution]] 1.65&Aring;' scene=''>
<StructureSection load='2vp7' size='340' side='right' caption='[[2vp7]], [[Resolution|resolution]] 1.65&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2vpg|2vpg]], [[2vpe|2vpe]], [[2vpb|2vpb]], [[2vpd|2vpd]]</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2vpg|2vpg]], [[2vpe|2vpe]], [[2vpb|2vpb]], [[2vpd|2vpd]]</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=2vp7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2vp7 OCA], [http://pdbe.org/2vp7 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2vp7 RCSB], [http://www.ebi.ac.uk/pdbsum/2vp7 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=2vp7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2vp7 OCA], [http://pdbe.org/2vp7 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2vp7 RCSB], [http://www.ebi.ac.uk/pdbsum/2vp7 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2vp7 ProSAT]</span></td></tr>
</table>
</table>
== 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.
== Function ==
[[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> 
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/vp/2vp7_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/vp/2vp7_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
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[[Category: Sanchez-Barrena, M J]]
[[Category: Sanchez-Barrena, M J]]
[[Category: Bcl9 hd1 domain]]
[[Category: Bcl9 hd1 domain]]
[[Category: Chromosomal rearrangement]]
[[Category: Gene regulation]]
[[Category: Gene regulation]]
[[Category: Histone h3k4me2 tail]]
[[Category: Histone h3k4me2 tail]]
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[[Category: Wnt signaling complex]]
[[Category: Wnt signaling complex]]
[[Category: Wnt signaling pathway]]
[[Category: Wnt signaling pathway]]
[[Category: Zinc]]
[[Category: Zinc-finger]]
[[Category: Zinc-finger]]

Revision as of 23:56, 19 September 2018

Decoding of methylated histone H3 tail by the Pygo-BCL9 Wnt signaling complexDecoding of methylated histone H3 tail by the Pygo-BCL9 Wnt signaling complex

Structural highlights

2vp7 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:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

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.

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[1]

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

References

  1. Fiedler M, Sanchez-Barrena MJ, Nekrasov M, Mieszczanek J, Rybin V, Muller J, Evans P, Bienz M. Decoding of methylated histone H3 tail by the Pygo-BCL9 Wnt signaling complex. Mol Cell. 2008 May 23;30(4):507-18. PMID:18498752 doi:10.1016/j.molcel.2008.03.011

2vp7, resolution 1.65Å

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA