Xeroderma Pigmentosum, Complementation Group G, also known as xeroderma pigmentosum, group g, is related to xeroderma pigmentosum, complementation group a and skin carcinoma. An important gene associated with Xeroderma Pigmentosum, Complementation Group G is ERCC5 (ERCC Excision Repair 5, Endonuclease), and among its related pathways/superpathways are Homology Directed Repair and Transcription-Coupled Nucleotide Excision Repair (TC-NER). Affiliated tissues include skin and brain, and related phenotypes are spasticity and ataxia