4r8p
From Proteopedia
(Difference between revisions)
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<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=4r8p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4r8p OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4r8p RCSB], [http://www.ebi.ac.uk/pdbsum/4r8p 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=4r8p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4r8p OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4r8p RCSB], [http://www.ebi.ac.uk/pdbsum/4r8p PDBsum]</span></td></tr> | ||
</table> | </table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The Polycomb group of epigenetic enzymes represses expression of developmentally regulated genes in many eukaryotes. This group includes the Polycomb repressive complex 1 (PRC1), which ubiquitylates nucleosomal histone H2A Lys 119 using its E3 ubiquitin ligase subunits, Ring1B and Bmi1, together with an E2 ubiquitin-conjugating enzyme, UbcH5c. However, the molecular mechanism of nucleosome substrate recognition by PRC1 or other chromatin enzymes is unclear. Here we present the crystal structure of the human Ring1B-Bmi1-UbcH5c E3-E2 complex (the PRC1 ubiquitylation module) bound to its nucleosome core particle substrate. The structure shows how a chromatin enzyme achieves substrate specificity by interacting with several nucleosome surfaces spatially distinct from the site of catalysis. Our structure further reveals an unexpected role for the ubiquitin E2 enzyme in substrate recognition, and provides insight into how the related histone H2A E3 ligase, BRCA1, interacts with and ubiquitylates the nucleosome. | ||
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| + | Crystal structure of the PRC1 ubiquitylation module bound to the nucleosome.,McGinty RK, Henrici RC, Tan S Nature. 2014 Oct 30;514(7524):591-6. doi: 10.1038/nature13890. PMID:25355358<ref>PMID:25355358</ref> | ||
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| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | == References == | ||
| + | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: Henrici, R C | + | [[Category: Henrici, R C]] |
| - | [[Category: McGinty, R K | + | [[Category: McGinty, R K]] |
| - | [[Category: Tan, S | + | [[Category: Tan, S]] |
[[Category: Arginine anchor]] | [[Category: Arginine anchor]] | ||
[[Category: Histone modification enzyme]] | [[Category: Histone modification enzyme]] | ||
Revision as of 07:47, 12 November 2014
Crystal structure of the Ring1B/Bmi1/UbcH5c PRC1 ubiquitylation module bound to the nucleosome core particle
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