adenosine(4) in tRNA(His) + S-adenosyl-L-methionine <=> 2'-O-methyladenosine(4) in tRNA(His) + S-adenosyl-L-homocysteine + H(+)
adenosine(4) in trna(his) + s-adenosyl-l-methionine <=> 2'-o-methyladenosine(4) in trna(his) + s-adenosyl-l-homocysteine + h(+)
adenosine(4) in tRNA(His) + S-adenosyl-L-methionine <=> 2'-O-methyladenosine(4) in tRNA(His) + S-adenosyl-L-homocysteine + H(+)
adenosine(4) in trna(his) + s-adenosyl-l-methionine <=> 2'-o-methyladenosine(4) in trna(his) + s-adenosyl-l-homocysteine + h(+)