Cancer Protein Description

This report provides a detailed description of a selected cancer protein with information collected from various sources, including UniProt, the Wellcome Trust Sanger Institute’s Catalogue of Somatic Mutations in Cancer (COSMIC), and the Atlas of Genetics and Cytogenetics in Oncology and Haematology.


Protein Name: DDB1
Gene Name: DDB1
Protein Full Name: DNA damage-binding protein 1
Alias: Damage-specific DNA binding protein 1, 127kDa; DDB p127 subunit; DDBa; DNA damage binding protein 1; UV-damaged DNA-binding protein 1; UV-DDB 1; X- associated protein 1; XAP-1; Xeroderma pigmentosum group E complementing protein; XPCe; XPE
Mass (Da): 126968
Number AA: 1140
UniProt ID: Q16531
Locus ID: 1642
COSMIC ID: DDB1
Gene location on chromosome: 11q12-q13
Cancer protein type: TSP
Effect of cancer mutation on protein: UNCLEAR
Effect of active protein on cancer: INHIBITS
Number of cancer specimens: 20238
Percent of cancer specimens with mutations: 0.86
Normal role description: DDB1 encodes for the large subunit of the UV-DDB complex, which is crucial in nucleotide excision repair. This complex recognizes and binds to DNA-damage sites. Suggested to be a component of E3 ubiquitin-protein ligase complexes and to ubiquitinate histones, thereby facilitating DNA repair. May be involved in ubiquitination of TP53. Disfunctional UV-DDB is associated with xeroderma pigmentosum complementation group E. However it remains to be shown, whether mutations in the large or the small subunit cause the defect.


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