2 4'-phospho-dehydrooxetanocin + 2 5'-deoxyadenosine + AH2 => 2 5'-deoxyadenosin-5'-yl radical + 2 dAMP + A
2 4'-phospho-dehydrooxetanocin + 2 5'-deoxyadenosine + ah2 => 2 5'-deoxyadenosin-5'-yl radical + 2 damp + a