DDB1 — Damage specific DNA binding protein 1
DDB1 belongs to a gene co-expression module in 3 of 28 SCUBA cell types. Each module groups genes that rise and fall together in that cell type; the genes it shares a module with are its closest co-expression partners there.
DDB1's module in each cell type
| Cell type | Module | Shares the module with | |
|---|---|---|---|
| Gamma-delta T cells | ER Antigen Processing Protein processing & ER | ACLY, ATL3, ATR, CANX, DCTN1, ERAP1, FOXJ3, ITCH +9 more | |
| Macrophages | Golgi-Endosome Trafficking Vesicular traficking | ACSL4, ADPGK, ARRDC3, ATXN7L3B, CLN8, DNAJC2, ETS2, EVI2A +26 more | View in SCUBA |
| Mucosal-associated invariant T cell | Nuclear-Cytoskeletal Organization Housekeeping | GANAB, HYOU1, IPO7, MYH9, NOLC1, NUMA1, PRPF8, SIN3A +4 more |
About the gene
| Chromosome | 11: 61299451-61342596 |
|---|---|
| Predicted location | Intracellular |
| Essential gene | Yes |
| Protein class | Disease related genes, Essential proteins, Human disease related genes, Plasma proteins, Predicted intracellular proteins |
| Molecular function | DNA-binding |
| Biological process | Biological rhythms, DNA damage, DNA repair, Host-virus interaction, Ubl conjugation pathway |
Function
Protein, which is both involved in DNA repair and protein ubiquitination, as part of the UV-DDB complex and DCX (DDB1-CUL4-X-box) complexes, respectively. Core component of the UV-DDB complex (UV-damaged DNA-binding protein complex), a complex that recognizes UV- induced DNA damage and recruit proteins of the nucleotide excision repair pathway (the NER pathway) to initiate DNA repair. The UV-DDB complex preferentially binds to cyclobutane pyrimidine dimers (CPD), 6-4 photoproducts (6-4 PP), apurinic sites and short mismatches. Also functions as a component of numerous distinct DCX (DDB1-CUL4-X-box) E3 ubiquitin-protein ligase complexes which mediate the ubiquitination and subsequent proteasomal degradation of target proteins. The functional specificity of the DCX E3 ubiquitin-protein ligase complex is determined by the variable substrate recognition component recruited by DDB1. DCX(DDB2) (also known as DDB1-CUL4-ROC1, CUL4-DDB-ROC1 and CUL4-DDB-RBX1) may ubiquitinate histone H2A, histone H3 and histone H4 at sites of UV- induced DNA damage. The ubiquitination of histones may facilitate their removal from the nucleosome and promote subsequent DNA repair. DCX(DDB2) also ubiquitinates XPC, which may enhance DNA-binding by XPC and promote NER. 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. DCX(ERCC8) (the CSA complex) plays a role in transcription-coupled repair (TCR). The DDB1-CUL4A-DTL E3 ligase complex regulates the circadian clock function by mediating the ubiquitination and degradation of CRY1. DDB1-mediated CRY1 degradation promotes FOXO1 protein stability and FOXO1-mediated gluconeogenesis in the liver (By similarity). By acting on TET dioxygenses, essential for oocyte maintenance at the primordial follicle stage, hence essential for female fertility (By similarity). Maternal factor required for proper zygotic genome activation and genome reprogramming (By similarity).
Human Protein Atlas · Open Targets · UniProt
Gene annotation from the Human Protein Atlas and UniProt; see sources & licences.