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 p53/TP53 in response to radiation-induced DNA damage and during DNA replication . DCX(DTL) directs autoubiquitination of DTL . In association with DDB1 and SKP2 probably is involved in ubiquitination of CDKN1B/p27kip . Is involved in ubiquitination of HOXA9 . The DDB1-CUL4A-DTL E3 ligase complex regulates the circadian clock function by mediating the ubiquitination and degradation of CRY1 . The DCX(ERCC8) complex (also named CSA complex) plays a role in transcription-coupled repair (TCR) . A number of DCX complexes (containing either TRPC4AP or DCAF12 as substrate-recognition component) are part of the DesCEND (destruction via C-end degrons) pathway, which recognizes a C-degron located at the extreme C terminus of target proteins, leading to their ubiquitination and degradation . The DCX(AMBRA1) complex is a master regulator of the transition from G1 to S cell phase by mediating ubiquitination of phosphorylated cyclin-D (CCND1, CCND2 and CCND3) . The DCX(AMBRA1) complex also acts as a regulator of Cul5-RING (CRL5) E3 ubiquitin-protein ligase complexes by mediating ubiquitination and degradation of Elongin-C (ELOC) component of CRL5 complexes . With CUL4B, contributes to ribosome biogenesis . .

Cullin-4A (CUL-4A),CUL4A

Q13619,Q3TCH7

8451

Human,Mouse

WB,ELISA

WB 1:500-2000
ELISA 1:5000-20000

CUL4A Polyclonal Antibody detects endogenous levels of protein.

83kDa

Rabbit

Synthesized peptide derived from human protein . at AA range: 590-670

Polyclonal

Rabbit,IgG

The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.

Liquid in PBS containing 50% glycerol, and 0.02% New type preservative N.

1 mg/ml

Store at -20℃. Stable for 12 months from date of receipt.