4lk9: Difference between revisions

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-{{STRUCTURE_4lk9|  PDB=4lk9  |  SCENE=  }}
+==Crystal Structure of MOZ double PHD finger histone H3 tail complex==
-===Crystal Structure of MOZ double PHD finger histone H3 tail complex===
+<StructureSection load='4lk9' size='340' side='right' caption='[[4lk9]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
-{{ABSTRACT_PUBMED_24150941}}
+== Structural highlights ==
+<table><tr><td colspan='2'>[[4lk9]] 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=4LK9 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4LK9 FirstGlance]. <br>
-==Disease==
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><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">[[4ljn|4ljn]], [[4llb|4llb]], [[4lka|4lka]]</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">KAT6A, MOZ, MYST3, RUNXBP2, ZNF220 ([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/Histone_acetyltransferase Histone acetyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.1.48 2.3.1.48] </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=4lk9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4lk9 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4lk9 RCSB], [http://www.ebi.ac.uk/pdbsum/4lk9 PDBsum]</span></td></tr>
+</table>
+== Disease ==
 [[http://www.uniprot.org/uniprot/KAT6A_HUMAN KAT6A_HUMAN]] Note=Chromosomal aberrations involving KAT6A may be a cause of acute myeloid leukemias. Translocation t(8;16)(p11;p13) with CREBBP; translocation t(8;22)(p11;q13) with EP300. KAT6A-CREBBP may induce leukemia by inhibiting RUNX1-mediated transcription. Inversion inv(8)(p11;q13) generates the KAT6A-NCOA2 oncogene, which consists of the N-terminal part of KAT6A and the C-terminal part of NCOA2/TIF2. KAT6A-NCOA2 binds to CREBBP and disrupts its function in transcription activation.  Note=A chromosomal aberration involving KAT6A is a cause of therapy-related myelodysplastic syndrome. Translocation t(2;8)(p23;p11.2) with ASXL2 generates a KAT6A-ASXL2 fusion protein.
+== Function ==
+[[http://www.uniprot.org/uniprot/KAT6A_HUMAN KAT6A_HUMAN]] Histone acetyltransferase that acetylates lysine residues in histone H3 and histone H4 (in vitro). Component of the MOZ/MORF complex which has a histone H3 acetyltransferase activity. May act as a transcriptional coactivator for RUNX1 and RUNX2.<ref>PMID:11742995</ref> <ref>PMID:11965546</ref> <ref>PMID:12771199</ref> <ref>PMID:16387653</ref> <ref>PMID:17925393</ref>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+Histone tail modifications control many nuclear processes by dictating the dynamic exchange of regulatory proteins on chromatin. Here we report novel insights into histone H3 tail structure in complex with the double PHD finger (DPF) of the lysine acetyltransferase MOZ/MYST3/KAT6A. In addition to sampling H3 and H4 modification status, we show that the DPF cooperates with the MYST domain to promote H3K9 and H3K14 acetylation, although not if H3K4 is trimethylated. Four crystal structures of an extended DPF alone and in complex with unmodified or acetylated forms of the H3 tail reveal the molecular basis of crosstalk between H3K4me3 and H3K14ac. We show for the first time that MOZ DPF induces alpha-helical conformation of H3K4-T11, revealing a unique mode of H3 recognition. The helical structure facilitates sampling of H3K4 methylation status, and proffers H3K9 and other residues for modification. Additionally, we show that a conserved double glycine hinge flanking the H3 tail helix is required for a conformational change enabling docking of H3K14ac with the DPF. In summary, our data provide the first observations of extensive helical structure in a histone tail, revealing the inherent ability of the H3 tail to adopt alternate conformations in complex with chromatin regulators.
-==Function==
+The double PHD finger domain of MOZ/MYST3 induces alpha-helical structure of the histone H3 tail to facilitate acetylation and methylation sampling and modification.,Dreveny I, Deeves SE, Fulton J, Yue B, Messmer M, Bhattacharya A, Collins HM, Heery DM Nucleic Acids Res. 2014 Jan 1;42(2):822-35. doi: 10.1093/nar/gkt931. Epub 2013, Oct 22. PMID:24150941<ref>PMID:24150941</ref>
-[[http://www.uniprot.org/uniprot/KAT6A_HUMAN KAT6A_HUMAN]] Histone acetyltransferase that acetylates lysine residues in histone H3 and histone H4 (in vitro). Component of the MOZ/MORF complex which has a histone H3 acetyltransferase activity. May act as a transcriptional coactivator for RUNX1 and RUNX2.<ref>PMID:11742995</ref> <ref>PMID:11965546</ref> <ref>PMID:12771199</ref> <ref>PMID:16387653</ref> <ref>PMID:17925393</ref>
-==About this Structure==
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-[[4lk9]] 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=4LK9 OCA].
+</div>
-==Reference==
+==See Also==
-<ref group="xtra">PMID:024150941</ref><references group="xtra"/><references/>
+*[[Histone acetyltransferase|Histone acetyltransferase]]
+== References ==
+<references/>
+__TOC__
+</StructureSection>
 [[Category: Histone acetyltransferase]]
 [[Category: Human]]
-[[Category: Deeves, S E.]]
+[[Category: Deeves, S E]]
-[[Category: Dreveny, I.]]
+[[Category: Dreveny, I]]
-[[Category: Heery, D M.]]
+[[Category: Heery, D M]]
-[[Category: Yue, B.]]
+[[Category: Yue, B]]
 [[Category: Double phd finger]]
 [[Category: Dpf]]
 [[Category: H3 tail]]
-[[Category: Histone acetyltransferase]]
 [[Category: Histone h3]]
 [[Category: Plant homeodomain finger]]
 [[Category: Transferase]]
 [[Category: Zinc finger]]