5dah

From Proteopedia

(Difference between revisions)

Revision as of 16:46, 15 November 2017

Crystal structure of PZP domain of human AF10 protein fused with Histone H3 peptide

Structural highlights

5dah is a 4 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Related:	5dag
Gene:	MLLT10, AF10 (HUMAN)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[AF10_HUMAN] Precursor T-cell acute lymphoblastic leukemia. A chromosomal aberration involving MLLT10 is associated with acute leukemias. Translocation t(10;11)(p12;q23) with KMT2A/MLL1. The result is a rogue activator protein. A chromosomal aberration involving MLLT10 is associated with diffuse histiocytic lymphomas. Translocation t(10;11)(p13;q14) with PICALM.

Function

[AF10_HUMAN] Probably involved in transcriptional regulation. In vitro or as fusion protein with KMT2A/MLL1 has transactivation activity. Binds to cruciform DNA.^[1]

Publication Abstract from PubMed

AF10, a DOT1L cofactor, is required for H3K79 methylation and cooperates with DOT1L in leukemogenesis. However, the molecular mechanism by which AF10 regulates DOT1L-mediated H3K79 methylation is not clear. Here we report that AF10 contains a "reader" domain that couples unmodified H3K27 recognition to H3K79 methylation. An AF10 region consisting of a PHD finger-Zn knuckle-PHD finger (PZP) folds into a single module that recognizes amino acids 22-27 of H3, and this interaction is abrogated by H3K27 modification. Structural studies reveal that H3 binding triggers rearrangement of the PZP module to form an H3(22-27)-accommodating channel and that the unmodified H3K27 side chain is encased in a compact hydrogen-bond acceptor-lined cage. In cells, PZP recognition of H3 is required for H3K79 dimethylation, expression of DOT1L-target genes, and proliferation of DOT1L-addicted leukemic cells. Together, our results uncover a pivotal role for H3K27-via readout by the AF10 PZP domain-in regulating the cancer-associated enzyme DOT1L.

The PZP Domain of AF10 Senses Unmodified H3K27 to Regulate DOT1L-Mediated Methylation of H3K79.,Chen S, Yang Z, Wilkinson AW, Deshpande AJ, Sidoli S, Krajewski K, Strahl BD, Garcia BA, Armstrong SA, Patel DJ, Gozani O Mol Cell. 2015 Oct 15;60(2):319-27. doi: 10.1016/j.molcel.2015.08.019. Epub 2015 , Oct 1. PMID:26439302^[2]

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

References

↑ Forissier S, Razanajaona D, Ay AS, Martel S, Bartholin L, Rimokh R. AF10-dependent transcription is enhanced by its interaction with FLRG. Biol Cell. 2007 Oct;99(10):563-71. PMID:17868029
↑ Chen S, Yang Z, Wilkinson AW, Deshpande AJ, Sidoli S, Krajewski K, Strahl BD, Garcia BA, Armstrong SA, Patel DJ, Gozani O. The PZP Domain of AF10 Senses Unmodified H3K27 to Regulate DOT1L-Mediated Methylation of H3K79. Mol Cell. 2015 Oct 15;60(2):319-27. doi: 10.1016/j.molcel.2015.08.019. Epub 2015 , Oct 1. PMID:26439302 doi:http://dx.doi.org/10.1016/j.molcel.2015.08.019

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5dah"

@@ Line 1: / Line 1: @@
 ==Crystal structure of PZP domain of human AF10 protein fused with Histone H3 peptide==
 <StructureSection load='5dah' size='340' side='right' caption='[[5dah]], [[Resolution|resolution]] 2.61&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5dah]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5DAH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5DAH FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5dah]] is a 4 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=5DAH OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5DAH FirstGlance]. <br>
 </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">[[5dag|5dag]]</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=5dah FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5dah OCA], [http://pdbe.org/5dah PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5dah RCSB], [http://www.ebi.ac.uk/pdbsum/5dah PDBsum]</span></td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MLLT10, AF10 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=5dah FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5dah OCA], [http://pdbe.org/5dah PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5dah RCSB], [http://www.ebi.ac.uk/pdbsum/5dah PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5dah ProSAT]</span></td></tr>
 </table>
 == Disease ==
@@ Line 24: / Line 26: @@
 __TOC__
 </StructureSection>
+[[Category: Human]]
 [[Category: Chen, S]]
 [[Category: Patel, D J]]

5dah

From Proteopedia

Revision as of 16:46, 15 November 2017

Crystal structure of PZP domain of human AF10 protein fused with Histone H3 peptide

Structural highlights

Disease

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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