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DNA-(apurinic or apyrimidinic site) lyase, also known as APE1 or APEX1, is a multifunctional mammalian proteins responsible for the cellular response to oxidative stress. Specifically, APE-1 both functions in the DNA base excision repair pathway and regulates the redox of transcriptional factors.
For DNA repair, APE1 functions as a mammalian apurinic/apyrimidinic (AP) endodeoxyribonuclease responsible for the repair of AP sites in DNA lesions induced by oxidative and alkylating agents.
APEX1 also exerts a reversible nuclear redox activity to regulate the DNA binding affinity and the activity of transcriptional factors by regulating the redox status of their DNA-binding domains.
APE1 antibodies are useful for studies on both DNA repair and transcriptional regulation.
