Skip to content
GenoLensGenoLens

XPA

Chr 9q22.33

XPA, DNA damage recognition and repair factor

Aliases:
XPAC, XP1
MANE:
ENST00000375128.5

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Adult solid tumours cancer susceptibility

    BIALLELIC, autosomal or pseudoautosomal
  • Childhood solid tumours

    BIALLELIC, autosomal or pseudoautosomal
  • Childhood solid tumours cancer susceptibility

    BIALLELIC, autosomal or pseudoautosomal
  • DDG2P

    BIALLELIC, autosomal or pseudoautosomal
  • Hereditary neuropathy

    BIALLELIC, autosomal or pseudoautosomal
  • Hereditary neuropathy or pain disorder

    BIALLELIC, autosomal or pseudoautosomal
  • Monogenic hearing loss

    BIALLELIC, autosomal or pseudoautosomal
  • White matter disorders and cerebral calcification - narrow panel

    BIALLELIC, autosomal or pseudoautosomal

+5 more panels — install the extension to see the full list inline on any page.

Disease associations (Open Targets)

  • xeroderma pigmentosum

    0.79
  • xeroderma pigmentosum group A

    0.78
  • Xeroderma pigmentosum complementation group A

    0.74
  • basal cell carcinoma

    0.59
  • non-melanoma skin carcinoma

    0.50
  • skin cancer

    0.50
  • hereditary disease

    0.47
  • hypothyroidism

    0.40
  • neurodegenerative disease

    0.39
  • colorectal adenocarcinoma

    0.37

Score is the Open Targets composite evidence score (0-1). Higher = stronger gene-disease association.

Protein function (UniProt)

DNA repair protein complementing XP-A cells

Involved in DNA nucleotide excision repair (NER). Initiates repair by binding to damaged sites with various affinities, depending on the photoproduct and the transcriptional state of the region. Required for UV-induced CHEK1 phosphorylation and the recruitment of CEP164 to cyclobutane pyrimidine dimmers (CPD), sites of DNA damage after UV irradiation (PubMed:19197159). During NER stimulates the 5'-3' helicase activity of XPD/ERCC2 and the DNA translocase activity of XPB/ERCC3 (PubMed:31253769). Connects XPD/ERCC2 and XPB/ERCC3 during NER, retaining DNA near the XPB/ERCC3 active site, and stabilizing the complex in a different conformation than in transcribing TFIIH (PubMed:31253769)

Curated MONDO disease pages that list XPA among their top associated genes.

Data sources: HGNC (CC BY 4.0), AlphaFold (CC BY 4.0, Jumper et al. Nature 2021), Genomics England PanelApp (CC BY 4.0), ClinGen, Open Targets (CC0), UniProt.

Not for sole clinical decision-making. Always verify against primary sources.