Catalytic activity:The C-O-P bond 3' to the apurinic or apyrimidinic site in DNA is broken by a beta-elimination reaction , leaving a 3'-terminal unsaturated sugar and a product with a terminal 5'-phosphate. ,Function:Repairs oxidative DNA damages in vitro. May have a role in protection against cell lethality and suppression of mutations. Removes the blocking groups from the 3'-termini of the DNA strand breaks generated by ionizing radiations and bleomycin. ,similarity:Belongs to the DNA repair enzymes AP/exoA family. ,subunit:Monomer. Component of the SET complex , which also contains SET , ANP32A , HMGB2 and NME1. ,
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