OGG1 and xeroderma pigmentosum: The BER DNA glycosylase 8-oxoguanine DNA glycosylase 1 (OGG1) dominates the repair of 8-oxo-dG; the minor contributor is xeroderma pigmentosum group C (XPC), which is related to nucleotide excision repair (NER) [26, 56, 57].