Xpa - xeroderma pigmentosum, complementation group A

Predicted to enable DNA binding activity; protein domain specific binding activity; and protein homodimerization activity. Acts upstream of or within several processes, including intrinsic apoptotic signaling pathway in response to DNA damage; nucleotide-excision repair; and positive regulation of transcription initiation from RNA polymerase II promoter. Located in nucleus. Is expressed in forelimb bud. Used to study xeroderma pigmentosum group A. Human ortholog(s) of this gene implicated in xeroderma pigmentosum and xeroderma pigmentosum group A. Orthologous to human XPA (XPA, DNA damage recognition and repair factor). [provided by Alliance of Genome Resources, Apr 2022]