XPC

Chr 3

XPC complex subunit, DNA damage recognition and repair factor

Also known as: RAD4, XP3, XPCC, p125

The protein encoded by this gene is a key component of the XPC complex, which plays an important role in the early steps of global genome nucleotide excision repair (NER). The encoded protein is important for damage sensing and DNA binding, and shows a preference for single-stranded DNA. Mutations in this gene or some other NER components can result in Xeroderma pigmentosum, a rare autosomal recessive disorder characterized by increased sensitivity to sunlight with the development of carcinomas at an early age. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Aug 2017]

GeneReviewsResearchGenerating clinical summary…

Primary Disease Associations & Inheritance

UniProtXeroderma pigmentosum complementation group C

Clinical highlights

Interpreting a novel variant
Loss of function is the curated mechanism (Gene2Phenotype), though the gene is not strongly LoF-constrained in the population — weigh truncating variants against that tolerance.Curated gene-level mechanism — a prior for triage, not a per-variant call.
0
Active trials
80
Pubs (1 yr)
—
P/LP submissions
—
P/LP missense
0.78
LOEUF
LOF
Mechanism· G2P
📖
GeneReview available — XPC
Authoritative clinical overview · Recommended first read
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Some data sources returned errors (1)

omim: Error: OMIM fetch failed: 429

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint?
0.78LOEUF
pLI 0.000
Z-score 2.70
OE 0.56 (0.40–0.78)
Tolerant

Typical tolerance to LoF variation

Missense Constraint?
0.69Z-score
OE missense 0.91 (0.85–0.99)
483 obs / 527.9 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?
LoF OE?0.56 (0.40–0.78)
0≤0.351.4
Missense OE?0.91 (0.85–0.99)
0≤0.61.4
Synonymous OE?0.99
0≤1.21.6
LoF obs/exp: 24 / 43.2Missense obs/exp: 483 / 527.9Syn Z: 0.13

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

XPC · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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Trials that enrol by condition rarely name the gene: xeroderma pigmentosum group C