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XPA
from Wikipedia
XPA
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesXPA, XP1, XPAC, xeroderma pigmentosum, complementation group A, DNA damage recognition and repair factor
External IDsOMIM: 611153; MGI: 99135; HomoloGene: 37298; GeneCards: XPA; OMA:XPA - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_000380

NM_011728

RefSeq (protein)

NP_000371
NP_001341904

NP_035858

Location (UCSC)n/aChr 4: 46.16 – 46.2 Mb
PubMed search[2][3]
Wikidata
View/Edit HumanView/Edit Mouse

DNA repair protein complementing XP-A cells is a protein that in humans is encoded by the XPA gene.[4]

Function

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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.[5] 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.[6]

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

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XPA has been shown to interact with ERCC1,[6][7] Replication protein A1[8] and XAB2.[9]

References

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Further reading

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