Summary

Name COPS4
Full Name COP9 signalosome complex subunit 4
Synonyms SGN4, Signalosome subunit 4, JAB1-containing signalosome subunit 4 | CSN4
Primary ID Q9BT78
Links - -
Type protein
Relations 2
Function 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. Also involved in the deneddylation of non-cullin subunits such as STON2. The complex is also involved in phosphorylation of p53/TP53, c-jun/JUN, IkappaBalpha/NFKBIA, ITPK1, IRF8/ICSBP and SNAPIN, 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.

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Relations

Regulator Mechanism target score ℹ
+ COPS4form complex img/form-complex.png binding COP9 signalosome variant 2 0.938
Publications: 1 Organism: Homo Sapiens
+ COPS4form complex img/form-complex.png binding COP9 signalosome variant 1 0.943
Publications: 1 Organism: Homo Sapiens