该基因编码的蛋白是xpc复合物的关键组成部分，在全球基因组核苷酸切除修复（ner）的早期步骤中起着重要作用。编码的蛋白质对于损伤感知和dna结合很重要，并且显示出对单链dna的偏好。该基因或其他一些内质网成分的突变可导致色素性干皮病，一种罕见的常染色体隐性遗传疾病，其特征是随着癌症的早期发展，对阳光的敏感性增加。另外，已经发现该基因的剪接转录变体。[由RefSeq提供，2017年8月]
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]