pyrophosphatase activity 5'-(N(7)-methylguanosine 5'-triphospho)-[mRNA] hydrolase activity https://github.com/geneontology/go-ontology/issues/23290 https://github.com/geneontology/go-ontology/issues/30193 GO:0140933 RHEA:67484 m(7)GpppN-mRNA hydrolase activity Catalysis of the reaction: a 5'-end (N7-methyl 5'-triphosphoguanosine)-ribonucleoside in mRNA + H2O = a 5'-end phospho-ribonucleoside in mRNA + N7-methyl-GDP + H+. RHEA:37371 molecular_function pg 2022-10-24T15:48:42Z EC:3.6.1.62