Summary

Name CBX4
Full Name E3 SUMO-protein ligase CBX4
Synonyms Chromobox protein homolog 4, Polycomb 2 homolog, Pc2, hPc2
Primary ID O00257
Links - -
Type protein
Relations 7
Function E3 SUMO-protein ligase which facilitates SUMO1 conjugation by UBE2I (PubMed:12679040). Involved in the sumoylation of HNRNPK, a p53/TP53 transcriptional coactivator, hence indirectly regulates p53/TP53 transcriptional activation resulting in p21/CDKN1A expression. Monosumoylates ZNF131 (PubMed:22825850).

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Modifications Tables

Relations

Regulator Mechanism target score
+ down-regulates quantity by destabilization img/direct_inhibition.png ubiquitination CBX4 0.2
Publications: 2 Organism: Homo Sapiens
+ down-regulates quantity by destabilization img/direct_inhibition.png sumoylation ZEB2 0.336
Publications: 2 Organism: Chlorocebus Aethiops
+ down-regulates quantity by destabilization img/direct_inhibition.png phosphorylation CBX4 0.2
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png sumoylation ZEB2 0.336
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding CBX4 0.408
Publications: 1 Organism: Homo Sapiens