Summary

Name PSMD4
Full Name 26S proteasome non-ATPase regulatory subunit 4
Synonyms 26S proteasome regulatory subunit RPN10, 26S proteasome regulatory subunit S5A, Antisecretory factor 1, AF, ASF, Multiubiquitin chain-binding protein | MCB1
Primary ID P55036
Links - -
Type protein
Relations 17
Function Component of the 26S proteasome, a multiprotein complex involved in the ATP-dependent degradation of ubiquitinated proteins. This complex plays a key role in the maintenance of protein homeostasis by removing misfolded or damaged proteins, which could impair cellular functions, and by removing proteins whose functions are no longer required. Therefore, the proteasome participates in numerous cellular processes, including cell cycle progression, apoptosis, or DNA damage repair. PSMD4 acts as an ubiquitin receptor subunit through ubiquitin-interacting motifs and selects ubiquitin-conjugates for destruction. Displays a preferred selectivity for longer polyubiquitin chains.

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Modifications Tables

Relations

Regulator Mechanism target score
+ down-regulates quantity by destabilization img/direct_inhibition.png polyubiquitination PSMD4 0.413
Publications: 4 Organism: In Vitro
+ down-regulates quantity by destabilization img/direct_inhibition.png polyubiquitination PSMD4 0.476
Publications: 6 Organism: In Vitro
+ down-regulates quantity by destabilization img/direct_inhibition.png polyubiquitination PSMD4 0.431
Publications: 1 Organism: In Vitro
+ down-regulates quantity by destabilization img/direct_inhibition.png polyubiquitination PSMD4 0.2
Publications: 1 Organism: In Vitro
+ down-regulates quantity by destabilization img/direct_inhibition.png polyubiquitination PSMD4 0.463
Publications: 1 Organism: In Vitro
+ form complex img/form-complex.png binding 26S Proteasome 0.899
Publications: 1 Organism: Homo Sapiens
+ down-regulates quantity by destabilization img/direct_inhibition.png polyubiquitination PSMD4 0.443
Publications: 1 Organism: In Vitro
+ down-regulates quantity by destabilization img/direct_inhibition.png polyubiquitination PSMD4 0.42
Publications: 1 Organism: In Vitro
+ down-regulates quantity by destabilization img/direct_inhibition.png polyubiquitination PSMD4 0.523
Publications: 1 Organism: In Vitro