class I DNA-(apurinic or apyrimidinic site) endonuclease activity
class i dna-(apurinic or apyrimidinic site) endonuclease activity
DNA-(apurinic or apyrimidinic site) 5'-phosphomonoester-lyase activity
dna-(apurinic or apyrimidinic site) 5'-phosphomonoester-lyase activity