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