FEATURES

FAMILY

DESCRIPTION

Also known as NTH_HUMAN, NTHL1, NTH1, OCTS3. Bifunctional DNA N-glycosylase with associated apurinic/apyrimidinic (AP) lyase function that catalyzes the first step in base excision repair (BER), the primary repair pathway for the repair of oxidative DNA damage (PubMed:9927729). The DNA N-glycosylase activity releases the damaged DNA base from DNA by cleaving the N-glycosidic bond, leaving an AP site. The AP-lyase activity cleaves the phosphodiester bond 3' to the AP site by a beta-elimination. Primarily recognizes and repairs oxidative base damage of pyrimidines. Has also 8-oxo-7, 8-dihydroguanine (8-oxoG) DNA glycosylase activity. Acts preferentially on DNA damage opposite guanine residues in DNA. Is able to process lesions in nucleosomes without requiring or inducing nucleosome disruption. Interacts with YBX1 (By similarity) (PubMed:11287425). Interacts with ERCC5/XPG; the interaction stimulates NTHL1 activity and NTHL1 binding to its DNA substrate (PubMed:9927729).

EXTERNAL LINKS

NTHL1

Endonuclease III-like protein 1

NTHL1

Molecular Synopsis