. "Authored: Buratowski, S, 2003-10-15 15:18:41"^^ . "In the final step of the capping reaction, the methyltransferase takes a methyl group from S-adenosyl-methionine to the N7 position of the cap guanine. N7G-methyltransferase (MT) mediated reaction can be represented as:
GpppN(pN)n + S-adenosylmethionine (Adomet) ->m7GpppN(pN)n + S-adenosylhomocysteine (Adohcy).

"^^ . . . . . . "Methylation of GMP-cap by RNA Methyltransferase"^^ . "2.1.1.56"^^ . . . . . . . .