該基因編碼的蛋白是xpc復合物的關鍵組成部分，在全球基因組核苷酸切除修復（ner）的早期步驟中起著重要作用。編碼的蛋白質對于損傷感知和dna結合很重要，并且顯示出對單鏈dna的偏好。該基因或其他一些內質網成分的突變可導致色素性干皮病，一種罕見的常染色體隱性遺傳疾病，其特征是隨著癌癥的早期發展，對陽光的敏感性增加。另外，已經發現該基因的剪接轉錄變體。[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]