Reaction catalyzed by 5'-(N7-methylguanosine 5'-triphospho)-[mRNA] hydrolase (3.6.1.62)
m7G5\'ppp5\'-U3 snoRNA
+
H2O
=
+
U3 snoRNA
+
H2O
m7G5'ppp5'-U3 snoRNA
+
H2O
=
m7GDP
+
U3 snoRNA
+
H2O