Search Thermo Fisher Scientific
Search Thermo Fisher Scientific
Immunogen sequence: MAPKKRPETQ KTSEIVLRPR NKRSRSPLEL EPEAKKLCAK GSGPSRRCDS DCLWVGLAGP QILPPCRSIV RTLHQHKLGR ASWPSVQQGL QQSFLHTLDS YRILQKAAP
Damaged DNA binding protein (DDB) is a heterodimer composed of two subunits, p127 and p48, which are designated DDB1 and DDB2, respectively. The DDB heterodimer is involved in repairing DNA damaged by ultraviolet light. Specifically, DDB, also designated UV-damaged DNA binding protein (UV-DDB), xeroderma pigmentosum group E binding factor (XPE-BF) and hepatitis B virus X-associated protein 1 (XAP-1), binds to damaged cyclobutane pyrimidine dimers (CPDs). Mutations in the DDB2 gene are implicated as causes of xeroderma pigmentosum group E, an autosomal recessive disease in which patients are defective in nucleotide excision DNA repair. XPE is characterized by hypersensitivity of the skin to sunlight with a high frequency of skin cancer as well as neurologic abnormalities. The hepatitis B virus (HBV) X protein interacts with DDB1, which may mediate HBx transactivation.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: damage-specific DNA binding protein 2, 48kDa; Damage-specific DNA-binding protein 2; DDB p48 subunit; DDBb; DNA damage-binding protein 2; UV-damaged DNA-binding protein 2; UV-DDB 2; xeroderma pigmentosum group E protein
Gene Aliases: DDB2; DDBB; UV-DDB2; XPE
UniProt ID: (Human) Q92466
Entrez Gene ID: (Human) 1643
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