Entrez 7507 | Ensembl ENSG00000136936 | |
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Aliases XPA, XP1, XPAC, xeroderma pigmentosum, complementation group A, DNA damage recognition and repair factor External IDs MGI: 99135 HomoloGene: 37298 GeneCards: XPA | ||
DNA repair protein complementing XP-A cells is a protein that in humans is encoded by the XPA gene.
Contents
Function
Nucleotide excision repair (NER) is a major pathway for repairing a variety of bulky DNA damages including those introduced by UV irradiation. The XPA protein appears to play a key role in NER at sites of damage as a scaffold for other repair proteins in order to ensure that the damages are appropriately excised. Among the repair proteins with which XPA interacts is a protein complex (including the ERCC1 protein) that is capable of incising DNA at sites of damage.
Xpa mutant individuals often show the severe clinical symptoms of xeroderma pigmentosum, a condition involving extreme sensitivity to sunlight and a high incidence of skin cancer.
Interactions
XPA has been shown to interact with ERCC1, Replication protein A1 and XAB2.