8pp7
From Proteopedia
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| - | '''Unreleased structure''' | ||
| - | + | ==human RYBP-PRC1 bound to mononucleosome== | |
| + | <StructureSection load='8pp7' size='340' side='right'caption='[[8pp7]], [[Resolution|resolution]] 2.91Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[8pp7]] is a 14 chain structure with sequence from [https://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster] and [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8PP7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8PP7 FirstGlance]. <br> | ||
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 2.91Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | ||
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=8pp7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8pp7 OCA], [https://pdbe.org/8pp7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8pp7 RCSB], [https://www.ebi.ac.uk/pdbsum/8pp7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8pp7 ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/BMI1_HUMAN BMI1_HUMAN] Component of a Polycomb group (PcG) multiprotein PRC1-like complex, a complex class required to maintain the transcriptionally repressive state of many genes, including Hox genes, throughout development. PcG PRC1 complex acts via chromatin remodeling and modification of histones; it mediates monoubiquitination of histone H2A 'Lys-119', rendering chromatin heritably changed in its expressibility. In the PRC1 complex, it is required to stimulate the E3 ubiquitin-protein ligase activity of RNF2/RING2.<ref>PMID:16359901</ref> <ref>PMID:16882984</ref> <ref>PMID:16714294</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Histone H2A monoubiquitination (H2Aub1) by the PRC1 subunit RING1B entails a positive feedback loop, mediated by the RING1B-interacting protein RYBP. We uncover that human RYBP-PRC1 binds unmodified nucleosomes via RING1B but H2Aub1-modified nucleosomes via RYBP. RYBP interactions with both ubiquitin and the nucleosome acidic patch create the high binding affinity that favors RYBP- over RING1B-directed PRC1 binding to H2Aub1-modified nucleosomes; this enables RING1B to monoubiquitinate H2A in neighboring unmodified nucleosomes. | ||
| - | + | Structural basis of the histone ubiquitination read-write mechanism of RYBP-PRC1.,Ciapponi M, Karlukova E, Schkolziger S, Benda C, Muller J Nat Struct Mol Biol. 2024 Jul;31(7):1023-1027. doi: 10.1038/s41594-024-01258-x. , Epub 2024 Mar 25. PMID:38528151<ref>PMID:38528151</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| - | [[Category: Benda | + | <div class="pdbe-citations 8pp7" style="background-color:#fffaf0;"></div> |
| - | [[Category: | + | == References == |
| - | [[Category: | + | <references/> |
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Drosophila melanogaster]] | ||
| + | [[Category: Homo sapiens]] | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Benda C]] | ||
| + | [[Category: Ciapponi M]] | ||
| + | [[Category: Mueller J]] | ||
Current revision
human RYBP-PRC1 bound to mononucleosome
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