DDB2 - damage specific DNA binding protein 2 Gene
Also Known as XPE; DDBB; UV-DDB2
Species: Homo sapiens
About DDB2
This gene has 16 transcripts (splice variants), 190 orthologues and is associated with 60 phenotypes. Ubiquitous expression in skin (RPKM 32.0), esophagus (RPKM 13.6) and 24 other tissues.
Summary
This gene encodes a protein that is necessary for the repair of ultraviolet light-damaged DNA. This protein is the smaller subunit of a heterodimeric protein complex that participates in nucleotide excision repair, and this complex mediates the ubiquitylation of histones H3 and H4, which facilitates the cellular response to DNA damage. This subunit appears to be required for DNA binding. Mutations in this gene cause xeroderma pigmentosum complementation group E, a recessive disease that is characterized by an increased sensitivity to UV light and a high predisposition for skin Cancer development, in some cases accompanied by neurological abnormalities. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2014]
DDB2 Products (6)
| mRNA | Protein | Name |
|---|---|---|
| NM_000107.3 | NP_000098.1 | DNA damage-binding protein 2 isoform WT |
| NM_001300734.2 | NP_001287663.1 | DNA damage-binding protein 2 isoform D1 |
| NM_001399874.1 | NP_001386803.1 | DNA damage-binding protein 2 isoform WT |
| NM_001399875.1 | NP_001386804.1 | DNA damage-binding protein 2 isoform WT |
| NM_001399876.1 | NP_001386805.1 | DNA damage-binding protein 2 isoform D1 |
| NM_001399878.1 | NP_001386807.1 | DNA damage-binding protein 2 isoform 3 |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| contributes to damaged DNA binding |
IDA
IDA: Inferred from direct assay
|
22334663 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
9418871 | GOA |
| enables protein-containing complex binding |
IPI
IPI: Inferred from physical interaction
|
11564863 | GOA |
| contributes to ubiquitin-protein transferase activity |
IDA
IDA: Inferred from direct assay
|
12732143 | GOA |
| Biological Process GO Annotation | Evidence | References | Source |
|---|---|---|---|
| involved in DNA damage response |
EXP
EXP: Inferred from Experiment
|
22118460 | GOA |
| involved in UV-damage excision repair |
IDA
IDA: Inferred from direct assay
|
14751237 | GOA |
| involved in cellular response to UV |
EXP
EXP: Inferred from Experiment
|
22118460 | GOA |
| involved in nucleotide-excision repair |
IDA
IDA: Inferred from direct assay
|
19109893 | GOA |
| involved in protein autoubiquitination |
IDA
IDA: Inferred from direct assay
|
12732143 | GOA |
| involved in protein polyubiquitination |
IDA
IDA: Inferred from direct assay
|
12732143 | GOA |
| involved in response to UV |
IDA
IDA: Inferred from direct assay
|
12732143 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| part of Cul4-RING E3 ubiquitin ligase complex |
IMP
IMP: Inferred from mutant phenotype
|
16949367 | GOA |
| part of Cul4A-RING E3 ubiquitin ligase complex |
EXP
EXP: Inferred from Experiment
|
22118460 | GOA |
| part of Cul4B-RING E3 ubiquitin ligase complex |
IDA
IDA: Inferred from direct assay
|
22334663 | GOA |
| located in nucleus |
IDA
IDA: Inferred from direct assay
|
14751237 | GOA |
| part of protein-containing complex |
IDA
IDA: Inferred from direct assay
|
12732143 | GOA |
| is active in site of DNA damage |
IDA
IDA: Inferred from direct assay
|
19109893 | GOA |
DDB2 Protein Structure
WD40: WD domain, G-beta repeat (115 - 140)
WD40: WD domain, G-beta repeat (233 - 271)
WD40: WD domain, G-beta repeat (287 - 316)
- 0
- 100
- 200
- 300
- 400
- 427 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
DNA damage-binding protein 2 |
|
DDB2 Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | References |
|---|---|---|---|---|---|---|---|
|
Intra
|
DDB2 | Q92466 | XPC | Homo sapiens | Q01831-1 | 22039351 | |
|
Intra
|
DDB2 | Q92466 | XPC | Homo sapiens | Q01831-1 | 22039351 | |
|
Intra
|
DDB2 | Q92466 | DDB1 | Homo sapiens | Q16531 | 19109893 | |
|
Intra
|
DDB2 | Q92466 | DDB1 | Homo sapiens | Q16531 | 22039351 | |
|
Intra
|
DDB2 | Q92466 | DDB1 | Homo sapiens | Q16531 | 28514442 | |
|
Intra
|
DDB2 | Q92466 | DDB1 | Homo sapiens | Q16531 | 33961781 | |
|
Intra
|
DDB2 | Q92466 | DDB1 | Homo sapiens | Q16531 | 17041588 | |
|
Intra
|
DDB2 | Q92466 | DDB1 | Homo sapiens | Q16531 | 16473935 | |
|
Intra
|
DDB2 | Q92466 | E2F1 | Homo sapiens | Q01094 | 9418871 | |
|
Intra
|
DDB2 | Q92466 | E2F1 | Homo sapiens | Q01094 | 9418871 | |
|
Intra
|
DDB2 | Q92466 | CUL4A | Homo sapiens | Q13619 | 28514442 | |
|
Intra
|
DDB2 | Q92466 | CUL4A | Homo sapiens | Q13619 | 33961781 | |
|
Intra
|
DDB2 | Q92466 | CUL4A | Homo sapiens | Q13619 | 16473935 | |
|
Intra
|
DDB2 | Q92466 | CUL4A | Homo sapiens | Q13619 | 26496610 |
DDB2 Antibodies
| Cat. No. | Product Name | Application | Reactivity |
|---|---|---|---|
| HY-P82382 | DDB2 Antibody (YA2127) | WB, IHC-P, ICC/IF, FC | Human |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Xeroderma Pigmentosum, Complementation Group E |
|
|
| Xeroderma Pigmentosum Group E |
|
|
| Xeroderma Pigmentosum, Variant Type |
|
|
| Skin Carcinoma |
|
|
| Cockayne Syndrome |
|
|
| Xeroderma Pigmentosum, Complementation Group C |
|
|
| Xeroderma Pigmentosum, Complementation Group F |
|
|
| Xeroderma Pigmentosum, Complementation Group G |
|
|
| Cockayne Syndrome A |
|
|
| Uv-Sensitive Syndrome |
|
|
| Xeroderma Pigmentosum, Complementation Group A |
|
|
| Cockayne Syndrome B |
|
|
| De Sanctis-Cacchione Syndrome |
|
|
| Trichothiodystrophy 3, Photosensitive |
|
|
| Lung Cancer |
|
|
| Melanoma |
|
|
| Trichothiodystrophy |
|
|
| Prostate Cancer |
|
|
| Colorectal Cancer |
|
|
| Breast Cancer |
|
|
| Fanconi Anemia, Complementation Group A |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Canis familiaris | DDB2 | VGNC | VGNC:39830 |
| Mus musculus | DDB2 | MGD | MGI:1355314 |
| Bos taurus | DDB2 | VGNC | VGNC:27942 |
| Felis catus | DDB2 | VGNC | VGNC:61387 |
| Rattus norvegicus | DDB2 | RGD | RGD:1310164 |
| Others | DDB2 | NCBI |