CUL4A_HUMAN

Source: PM19886704
PM23856902
Marked as 'Non-membrane protein'
Confidence: low (only semi-automatic identification from reviews) Search PubMed for
(RBC AND this entry)
Gene names: CUL4A
Protein names and data: CUL4A_HUMAN , Cullin-4A; CUL-4A Lenght: 759 a.a.
Mass: 87680 Da
fasta formatted sequence
Function: Core component of multiple cullin-RING-based E3 ubiquitin-protein ligase complexes which mediate the ubiquitination of target proteins. As a scaffold protein may contribute to catalysis through positioning of the substrate and the ubiquitin-conjugating enzyme. The E3 ubiquitin-protein ligase activity of the complex is dependent on the neddylation of the cullin subunit and is inhibited by the association of the deneddylated cullin subunit with TIP120A/CAND1. The functional specificity of the E3 ubiquitin-protein ligase complex depends on the variable substrate recognition component. DCX(DET1-COP1) directs ubiquitination of JUN. DCX(DDB2) directs ubiquitination of XPC. DCX(DDB2) ubiquitinates histones H3-H4 and is required for efficient histone deposition during replication-coupled (H3.1) and replication-independent (H3.3) nucleosome assembly, probably by facilitating the transfer of H3 from ASF1A/ASF1B to other chaperones involved in histone deposition. DCX(DTL) plays a role in PCNA-dependent polyubiquitination of CDT1 and MDM2-dependent ubiquitination of TP53 in response to radiation-induced DNA damage and during DNA replication. In association with DDB1 and SKP2 probably is involved in ubiquitination of CDKN1B/p27kip. Is involved in ubiquitination of HOXA9. DCX(DTL) directs autoubiquitination of DTL.
Pathway: Protein modification; protein ubiquitination.

Genetic variants

Database cross-references

UniProt: Q13619
Ensembl: ENST00000326335
Ensembl: ENST00000375440
Ensembl: ENST00000375441
Ensembl: ENST00000451881
MIM: 603137
neXtProt: NX_Q13619
Antibodypedia: Q13619 (may not find the protein thus also not any antibody)
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