The XPA (xeroderma pigmentosumgroup A) protein specifically recognizes the UV-orchemically damaged DNA lesions, and triggers thenucleotide excision repair process. XPA binds to thereplication protein A (RPA) or the excision repaircross complementing 1 protein (ERCC 1). In the absence of nucleotide excision repair persisting (unrepaired) DNA lesions (adducts) may lead to the accumulation of gene mutations and ultimately to cancer. Xeroderma pigmentosum patients have a >2000 fold increased risk to develop skin cancer atsun-exposed areas.
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Protein Aliases: DNA repair protein complementing XP-A cells; DNA repair protein complementing XP-A cells homolog; excision repair-controlling; mutant xeroderma pigmentosum complementation group A; Xeroderma pigmentosum group A-complementing protein; Xeroderma pigmentosum group A-complementing protein homolog; xeroderma pigmentosum, complementation group A; XP1; XPA; XPAC
Gene Aliases: AI573865; XP1; XPA; XPAC