Summary

Name CDC34
Full Name Ubiquitin-conjugating enzyme E2 R1
Synonyms (E3-independent) E2 ubiquitin-conjugating enzyme R1, 2.3.2.24, E2 ubiquitin-conjugating enzyme R1, Ubiquitin-conjugating enzyme E2-32 kDa complementing, Ubiquitin-conjugating enzyme E2-CDC34, Ubiquitin-protein ligase R1 | UBCH3, UBE2R1
Primary ID P49427
Links - -
Type protein
Relations 16
Function Accepts ubiquitin from the E1 complex and catalyzes its covalent attachment to other proteins. In vitro catalyzes 'Lys-48'-linked polyubiquitination (PubMed:22496338). Cooperates with the E2 UBCH5C and the SCF(FBXW11) E3 ligase complex for the polyubiquitination of NFKBIA leading to its subsequent proteasomal degradation. Performs ubiquitin chain elongation building ubiquitin chains from the UBE2D3-primed NFKBIA-linked ubiquitin. UBE2D3 acts as an initiator E2, priming the phosphorylated NFKBIA target at positions 'Lys-21' and/or 'Lys-22' with a monoubiquitin. Cooperates with the SCF(SKP2) E3 ligase complex to regulate cell proliferation through ubiquitination and degradation of MYBL2 and KIP1. Involved in ubiquitin conjugation and degradation of CREM isoform ICERIIgamma and ATF15 resulting in abrogation of ICERIIgamma- and ATF5-mediated repression of cAMP-induced transcription during both meiotic and mitotic cell cycles. Involved in the regulation of the cell cycle G2/M phase through its targeting of the WEE1 kinase for ubiquitination and degradation. Also involved in the degradation of beta-catenin. Is target of human herpes virus 1 protein ICP0, leading to ICP0-dependent dynamic interaction with proteasomes (PubMed:10329681, PubMed:10373550, PubMed:10871850, PubMed:11675391, PubMed:12037680, PubMed:15652359, PubMed:17461777, PubMed:17698585, PubMed:19112177, PubMed:19126550, PubMed:19945379, PubMed:20061386, PubMed:20347421).

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Modifications Tables

Relations

Regulator Mechanism target score
+ img/unknown.png phosphorylation CDC34 0.357
Publications: 5 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png phosphorylation CDC34 0.403
Publications: 5 Organism: Homo Sapiens
+ down-regulates quantity by destabilization img/direct_inhibition.png phosphorylation CDC34 0.343
Publications: 1 Organism: In Vitro
+ down-regulates activity img/direct_inhibition.png polyubiquitination CDC34 0.737
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding SCF-betaTRCP 0.766
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding SCF-FBW7 0.796
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding SCF-SKP2 0.76
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding SCF-FBW2 0.707
Publications: 1 Organism: Homo Sapiens