RNA cap trimethylguanosine synthase activity
Catalysis of two successive methyl transfer reactions from AdoMet to the N-2 atom of guanosine, thereby converting 7-methylguanosine in an RNA cap to 2,2,7 trimethylguanosine.
GO:0008173
RNA methyltransferase activity
is_a
GO:0008757
S-adenosylmethionine-dependent methyltransferase activity
is_a
RNA trimethylguanosine synthase activity
exact
cap hypermethylase activity
exact
small nuclear RNA methyltransferase activity
related
snRNA methyltransferase activity
related
SPAC2G11.15c