label: a 2'-deoxycytidine in double-stranded DNA + H2O + H(+) => a 2'-deoxyuridine in double-stranded DNA + NH4(+)
label_lc: a 2'-deoxycytidine in double-stranded dna + h2o + h(+) => a 2'-deoxyuridine in double-stranded dna + nh4(+)