a 3'-end 2'-deoxyribonucleotide-DNA + phosphate => a 3'end (2'-deoxyribonucleotide 3'-phosphate)-DNA + H2O
a 3'-end 2'-deoxyribonucleotide-dna + phosphate => a 3'end (2'-deoxyribonucleotide 3'-phosphate)-dna + h2o