2'-O-methylguanosine(18) in tRNA + S-adenosyl-L-homocysteine + H(+) => guanosine(18) in tRNA + S-adenosyl-L-methionine
2'-o-methylguanosine(18) in trna + s-adenosyl-l-homocysteine + h(+) => guanosine(18) in trna + s-adenosyl-l-methionine
2'-O-methylguanosine(18) in tRNA + S-adenosyl-L-homocysteine + H(+) => guanosine(18) in tRNA + S-adenosyl-L-methionine
2'-o-methylguanosine(18) in trna + s-adenosyl-l-homocysteine + h(+) => guanosine(18) in trna + s-adenosyl-l-methionine