2m6n: Difference between revisions

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== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[2m6n]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2M6N OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2M6N FirstGlance]. <br>
<table><tr><td colspan='2'>[[2m6n]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2M6N OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2M6N FirstGlance]. <br>
</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>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=2m6n FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2m6n OCA], [https://pdbe.org/2m6n PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2m6n RCSB], [https://www.ebi.ac.uk/pdbsum/2m6n PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2m6n ProSAT]</span></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=2m6n FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2m6n OCA], [https://pdbe.org/2m6n PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2m6n RCSB], [https://www.ebi.ac.uk/pdbsum/2m6n PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2m6n ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[https://www.uniprot.org/uniprot/FBX5_HUMAN FBX5_HUMAN] Regulates progression through early mitosis by inhibiting the anaphase promoting complex/cyclosome (APC). Binds to the APC activators CDC20 and FZR1/CDH1 to prevent APC activation. Can also bind directly to the APC to inhibit substrate-binding.<ref>PMID:11988738</ref> <ref>PMID:16921029</ref>  
[https://www.uniprot.org/uniprot/FBX5_HUMAN FBX5_HUMAN] Regulates progression through early mitosis by inhibiting the anaphase promoting complex/cyclosome (APC). Binds to the APC activators CDC20 and FZR1/CDH1 to prevent APC activation. Can also bind directly to the APC to inhibit substrate-binding.<ref>PMID:11988738</ref> <ref>PMID:16921029</ref>  
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The anaphase-promoting complex/cyclosome (APC/C) is a ~1.5-MDa multiprotein E3 ligase enzyme that regulates cell division by promoting timely ubiquitin-mediated proteolysis of key cell-cycle regulatory proteins. Inhibition of human APC/CCDH1 during interphase by early mitotic inhibitor 1 (EMI1) is essential for accurate coordination of DNA synthesis and mitosis. Here, we report a hybrid structural approach involving NMR, electron microscopy and enzymology, which reveal that EMI1's 143-residue C-terminal domain inhibits multiple APC/CCDH1 functions. The intrinsically disordered D-box, linker and tail elements, together with a structured zinc-binding domain, bind distinct regions of APC/CCDH1 to synergistically both block the substrate-binding site and inhibit ubiquitin-chain elongation. The functional importance of intrinsic structural disorder is explained by enabling a small inhibitory domain to bind multiple sites to shut down various functions of a 'molecular machine' nearly 100 times its size.
Electron microscopy structure of human APC/C-EMI1 reveals multimodal mechanism of E3 ligase shutdown.,Frye JJ, Brown NG, Petzold G, Watson ER, Grace CR, Nourse A, Jarvis MA, Kriwacki RW, Peters JM, Stark H, Schulman BA Nat Struct Mol Biol. 2013 May 26. doi: 10.1038/nsmb.2593. PMID:23708605<ref>PMID:23708605</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2m6n" style="background-color:#fffaf0;"></div>
== References ==
== References ==
<references/>
<references/>

Latest revision as of 06:59, 1 May 2024

3D solution structure of EMI1 (Early Mitotic Inhibitor 1)

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