label: 2'-O-methyluridine(44) in tRNA(Ser) + S-adenosyl-L-homocysteine + H(+) => uridine(44) in tRNA(Ser) + S-adenosyl-L-methionine
label_lc: 2'-o-methyluridine(44) in trna(ser) + s-adenosyl-l-homocysteine + h(+) => uridine(44) in trna(ser) + s-adenosyl-l-methionine