4bh6

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'''Unreleased structure'''
 
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The entry 4bh6 is ON HOLD until Paper Publication
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==Insights into degron recognition by APC coactivators from the structure of an Acm1-Cdh1 complex==
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<StructureSection load='4bh6' size='340' side='right'caption='[[4bh6]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[4bh6]] is a 16 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4BH6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4BH6 FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.9&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SEP:PHOSPHOSERINE'>SEP</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4bh6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4bh6 OCA], [https://pdbe.org/4bh6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4bh6 RCSB], [https://www.ebi.ac.uk/pdbsum/4bh6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4bh6 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CDH1_YEAST CDH1_YEAST] Activator protein that regulates the ubiquitin ligase activity and substrate specificity of the anaphase promoting complex/cyclosome (APC/C). During telophase and in the subsequent G1 phase of the cell cycle, recognizes and binds proteins containing a destruction box (D-box) and an additional degradation signal termed the KEN box including ASE1, CDC20, the B-type cyclins CLB2 and CLB3, the polo-like kinase CDC5 and HSL1, and recruits them in a C-box-dependent manner to the APC/C for ubiquitination and subsequent proteolysis. Required for exit from mitosis, cytokinesis and formation of prereplicative complexes in G1. Probably is the target of a BUB2-dependent spindle checkpoint pathway.<ref>PMID:10329618</ref> <ref>PMID:11566880</ref> <ref>PMID:11448992</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The anaphase-promoting complex/cyclosome (APC/C) regulates sister chromatid segregation and the exit from mitosis. Selection of most APC/C substrates is controlled by coactivator subunits (either Cdc20 or Cdh1) that interact with substrate destruction motifs-predominantly the destruction (D) box and KEN box degrons. How coactivators recognize D box degrons and how this is inhibited by APC/C regulatory proteins is not defined at the atomic level. Here, from the crystal structure of S. cerevisiae Cdh1 in complex with its specific inhibitor Acm1, which incorporates D and KEN box pseudosubstrate motifs, we describe the molecular basis for D box recognition. Additional interactions between Acm1 and Cdh1 identify a third protein-binding site on Cdh1 that is likely to confer coactivator-specific protein functions including substrate association. We provide a structural rationalization for D box and KEN box recognition by coactivators and demonstrate that many noncanonical APC/C degrons bind APC/C coactivators at the D box coreceptor.
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Authors: He, J., Chao, W.C.H., Zhang, Z., Yang, J., Cronin, N., Barford, D.
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Insights into Degron Recognition by APC/C Coactivators from the Structure of an Acm1-Cdh1 Complex.,He J, Chao WC, Zhang Z, Yang J, Cronin N, Barford D Mol Cell. 2013 May 22. pii: S1097-2765(13)00329-8. doi:, 10.1016/j.molcel.2013.04.024. PMID:23707760<ref>PMID:23707760</ref>
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Description: Insights into degron recognition by APC coactivators from the structure of an Acm1-Cdh1 complex
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 4bh6" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
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[[Category: Saccharomyces cerevisiae]]
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[[Category: Barford D]]
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[[Category: Chao WCH]]
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[[Category: Cronin N]]
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[[Category: He J]]
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[[Category: Yang J]]
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[[Category: Zhang Z]]

Current revision

Insights into degron recognition by APC coactivators from the structure of an Acm1-Cdh1 complex

PDB ID 4bh6

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