Type: | Family | Name: | Endonuclease III |
Description: | The spectrum of DNA damage caused by reactive oxygen species includes a wide variety of modifications of purine and pyrimidine bases. Among these modified bases, 7,8-dihydro-8-oxoguanine (8-oxoG) is an important mutagenic lesion. Base excision repair is a critical mechanism for preventing mutations by removing the oxidative lesion from the DNA. Escherichia coliNth protein (endonuclease III) has an 8-oxoG DNA glycosylase/AP lyase activity which removes 8-oxoG preferentially from 8-oxoG/G mispairs. Homo sapiens(Human) hNTH1 protein, a homologue of E. coli Nth protein, has similar DNA glycosylase/AP lyase activity that removes 8-oxoG from 8-oxoG/G mispairs []. | Short Name: | Nth |