internal mRNA (guanine-N7-)-methyltransferase activity
internal mrna (guanine-n7-)-methyltransferase activity
a guanosine in mRNA + S-adenosyl-L-methionine = an N(7)-methylguanosine in mRNA + S-adenosyl-L-homocysteine
a guanosine in mrna + s-adenosyl-l-methionine = an n(7)-methylguanosine in mrna + s-adenosyl-l-homocysteine