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5d2m
From Proteopedia
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| - | ''' | + | ==Complex between human SUMO2-RANGAP1, UBC9 and ZNF451== |
| + | <StructureSection load='5d2m' size='340' side='right' caption='[[5d2m]], [[Resolution|resolution]] 2.40Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[5d2m]] is a 7 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5D2M OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5D2M FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene></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=5d2m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5d2m OCA], [http://pdbe.org/5d2m PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5d2m RCSB], [http://www.ebi.ac.uk/pdbsum/5d2m PDBsum]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [[http://www.uniprot.org/uniprot/ZN451_HUMAN ZN451_HUMAN]] May be involved in transcriptional regulation. Coactivator for steroid receptors. [[http://www.uniprot.org/uniprot/UBC9_HUMAN UBC9_HUMAN]] Accepts the ubiquitin-like proteins SUMO1, SUMO2, SUMO3 and SUMO4 from the UBLE1A-UBLE1B E1 complex and catalyzes their covalent attachment to other proteins with the help of an E3 ligase such as RANBP2 or CBX4. Can catalyze the formation of poly-SUMO chains. Necessary for sumoylation of FOXL2 and KAT5. Essential for nuclear architecture and chromosome segregation.<ref>PMID:8668529</ref> <ref>PMID:11451954</ref> <ref>PMID:15809060</ref> <ref>PMID:19744555</ref> <ref>PMID:19638400</ref> <ref>PMID:17466333</ref> <ref>PMID:20077568</ref> [[http://www.uniprot.org/uniprot/RAGP1_HUMAN RAGP1_HUMAN]] GTPase activator for the nuclear Ras-related regulatory protein Ran, converting it to the putatively inactive GDP-bound state. [[http://www.uniprot.org/uniprot/SUMO2_HUMAN SUMO2_HUMAN]] Ubiquitin-like protein that can be covalently attached to proteins as a monomer or as a lysine-linked polymer. Covalent attachment via an isopeptide bond to its substrates requires prior activation by the E1 complex SAE1-SAE2 and linkage to the E2 enzyme UBE2I, and can be promoted by an E3 ligase such as PIAS1-4, RANBP2 or CBX4. This post-translational modification on lysine residues of proteins plays a crucial role in a number of cellular processes such as nuclear transport, DNA replication and repair, mitosis and signal transduction. Polymeric SUMO2 chains are also susceptible to polyubiquitination which functions as a signal for proteasomal degradation of modified proteins.<ref>PMID:9556629</ref> <ref>PMID:18538659</ref> <ref>PMID:18408734</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | E3 protein ligases enhance transfer of ubiquitin-like (Ubl) proteins from E2 conjugating enzymes to substrates by stabilizing the thioester-charged E2~Ubl in a closed configuration optimally aligned for nucleophilic attack. Here, we report biochemical and structural data that define the N-terminal domain of the Homo sapiens ZNF451 as the catalytic module for SUMO E3 ligase activity. The ZNF451 catalytic module contains tandem SUMO-interaction motifs (SIMs) bridged by a Pro-Leu-Arg-Pro (PLRP) motif. The first SIM and PLRP motif engage thioester-charged E2~SUMO while the next SIM binds a second molecule of SUMO bound to the back side of E2. We show that ZNF451 is SUMO2 specific and that SUMO modification of ZNF451 may contribute to activity by providing a second molecule of SUMO that interacts with E2. Our results are consistent with ZNF451 functioning as a bona fide SUMO E3 ligase. | ||
| - | + | Structural basis for catalytic activation by the human ZNF451 SUMO E3 ligase.,Cappadocia L, Pichler A, Lima CD Nat Struct Mol Biol. 2015 Nov 2. doi: 10.1038/nsmb.3116. PMID:26524494<ref>PMID:26524494</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | <div class="pdbe-citations 5d2m" style="background-color:#fffaf0;"></div> | |
| - | + | == References == | |
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
[[Category: Cappadocia, L]] | [[Category: Cappadocia, L]] | ||
| - | [[Category: Lima, C | + | [[Category: Lima, C D]] |
| + | [[Category: Complex]] | ||
| + | [[Category: E3 ligase]] | ||
| + | [[Category: Ligase]] | ||
| + | [[Category: Protein binding]] | ||
| + | [[Category: Sumo]] | ||
Revision as of 19:28, 30 November 2015
Complex between human SUMO2-RANGAP1, UBC9 and ZNF451
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Categories: Cappadocia, L | Lima, C D | Complex | E3 ligase | Ligase | Protein binding | Sumo
