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.
Category
Antibodies
Product Group
Polyclonal Antibodies
Application
FC, IF, IHC-P, WB
Host
Rabbit
Species reactivity
Human, Mouse, Rat
Conjugate
Unconjugated
Immunogen
Recombinant protein within Human DDB1 aa 151-560 / 1,140.
Molecular Weight
127 kDa
Synonyms
damage-specific DNA binding protein 1, 127kDa; DDB p127 subunit; DDBA; DNA damage-binding protein 1; DNA damage-binding protein a; HBV X-associated protein 1; UV-damaged DNA-binding factor; UV-damaged DNA-binding protein 1; UV-DDB 1; UV-DDB1; WHIKERS; XAP1; XAP-1; xeroderma pigmentosum group E-complementing protein; XPCE; XPE; XPE-BF; XPE-binding factor; 127kDa; AA408517; damaged-DNA recognition protein 1; damage-specific DNA-binding protein, DNA repair; p127-Ddb; p127-Ddb1; Damage-specific DNA-binding protein 1