NEI3 Antibody – Rabbit Polyclonal

NEIL3 belongs to a class of DNA glycosylases homologous to the bacterial Fpg/Nei family. These glycosylases initiate the first step in base excision repair by cleaving bases damaged by reactive oxygen species and introducing a DNA strand break via the associated lyase reaction (Bandaru et al., 2002 [PubMed 12509226]).[supplied by OMIM, Mar 2008]

NEIL3: Reports about DNA glycosylase activity are contradictory. A number of references report finding no DNA glycosylase activity and the protein lacks a proline residue at the N-terminus which functions as an active site residue in other members of the FPG family. However, the mouse ortholog has been shown to have both DNA glycosylase and AP lyase activities and PubMed:19170771 demonstrates AP lyase activity. Prefers single- stranded DNA or partially single-stranded DNA structures such as bubble and fork structures to double-stranded DNA in vitro. Displays a broad recognition spectrum, preferring FapyA and FapyG followed by 5-OHU, 5-PHC and 5-OHMH and then Tg and 8-oxoA. No activity on 8-oxoG detected. Belongs to the FPG family.

Protein type: EC 4.2.99.18; DNA-binding

Chromosomal Location of Human Ortholog: 4q34.3

Cellular Component: nucleus

Molecular Function: DNA-(apurinic or apyrimidinic site) lyase activity; zinc ion binding; DNA N-glycosylase activity; double-stranded DNA binding; damaged DNA binding; bubble DNA binding; single-stranded DNA binding

Biological Process: nucleotide-excision repair; base-excision repair; DNA catabolic process, endonucleolytic