label: a 5'-end (N(7)-methyl 5'-triphosphoguanosine)-ribonucleoside-ribonucleotide in mRNA + H2O => a (N(7)-methyl 5'-triphosphoguanosine)-nucleoside + a 5'-end phospho-ribonucleoside in mRNA + H(+)
label_lc: a 5'-end (n(7)-methyl 5'-triphosphoguanosine)-ribonucleoside-ribonucleotide in mrna + h2o => a (n(7)-methyl 5'-triphosphoguanosine)-nucleoside + a 5'-end phospho-ribonucleoside in mrna + h(+)