ID 3.1.3.33 DE polynucleotide 5'-phosphatase. AN 5'-polynucleotidase. AN polynucleotide 5'-triphosphatase. CA (1) a 5'-end 5'-phospho-ribonucleoside-RNA + H2O = a 5'-end dephospho- CA ribonucleoside-RNA + phosphate. CA (2) a 5'-end 5'-phospho-2'-deoxyribonucleoside-DNA + H2O = a 5'-end CA dephospho-2'-deoxyribonucleoside-DNA + phosphate. CC -!- Does not act on nucleoside monophosphates. CC -!- Induced in Escherichia coli by T-even phages. //