Term Name:	methyltransferase cap1 activity
Synonyms:	messenger ribonucleate nucleoside 2'-methyltransferase activity, messenger RNA (nucleoside-2'-)-methyltransferase activity, mRNA (adenosine-2'-O-)-methyltransferase activity, mRNA (nucleoside-2'-O-)-methyltransferase activity, S-adenosyl-L-methionine:mRNA (nucleoside-2'-O-)-methyltransferase activity
Definition:	Catalysis of the reaction: a 5'-end (N(7)-methyl 5'-triphosphoguanosine)-ribonucleoside in mRNA or snRNA + S-adenosyl-L-methionine = a 5'-end (N(7)-methyl 5'-triphosphoguanosine)-(2'-O-methyl-ribonucleoside) in mRNA or snRNA + S-adenosyl-L-homocysteine + H+. This activity catalyzes the methylation of the ribose on the first transcribed nucleotide of mRNAs and snRNAs.
Ontology:	GO: Molecular Function [GO:0004483]    QuickGO    AmiGO