label: (2E,4S)-4,5-dihydroxypent-2-enal + a 3'end (2'-deoxyribonucleotide 3'-phosphate)-DNA + H(+) => a 3'-end 2'-deoxyribonucleotide-(2,3-dehydro-2,3-deoxyribose 5'-phosphate)-DNA + H2O
label_lc: (2e,4s)-4,5-dihydroxypent-2-enal + a 3'end (2'-deoxyribonucleotide 3'-phosphate)-dna + h(+) => a 3'-end 2'-deoxyribonucleotide-(2,3-dehydro-2,3-deoxyribose 5'-phosphate)-dna + h2o