as a tool for the study of the capping-methylation process of yeast mrna , we developed a procedure for the purification of the mrna ( guanine-7- ) methyltransferase using the commercial cap analog guanosine ( 5 ' ) triphospho ( 5 ' ) guanosine as a substrate and radioactive s-adenosylmethionine ( adomet ) as the methyl group donor .
C0025723
methylation
C0025831
methyltransferase