View source for 9efq


==Cryo-EM structure of COP9 signalosome precatalytic state with neddylated cullin-2==
<StructureSection load='9efq' size='340' side='right'caption='[[9efq]], [[Resolution|resolution]] 2.96&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[9efq]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=9EFQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=9EFQ 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]] 2.96&#8491;</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=9efq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=9efq OCA], [https://pdbe.org/9efq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=9efq RCSB], [https://www.ebi.ac.uk/pdbsum/9efq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=9efq ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CSN1_HUMAN CSN1_HUMAN] Essential component of the COP9 signalosome complex (CSN), a complex involved in various cellular and developmental processes. The CSN complex is an essential regulator of the ubiquitin (Ubl) conjugation pathway by mediating the deneddylation of the cullin subunits of SCF-type E3 ligase complexes, leading to decrease the Ubl ligase activity of SCF-type complexes such as SCF, CSA or DDB2. The complex is also involved in phosphorylation of p53/TP53, c-jun/JUN, IkappaBalpha/NFKBIA, ITPK1 and IRF8/ICSBP, possibly via its association with CK2 and PKD kinases. CSN-dependent phosphorylation of TP53 and JUN promotes and protects degradation by the Ubl system, respectively. Suppresses G-protein- and mitogen-activated protein kinase-mediated signal transduction.<ref>PMID:9535219</ref> <ref>PMID:11285227</ref> <ref>PMID:11337588</ref> <ref>PMID:12732143</ref> <ref>PMID:12628923</ref> 
== References ==
<references/>
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Shi H]]
[[Category: Zheng N]]