label: a 2'-O-methylribonucleotide in RNA + S-adenosyl-L-homocysteine + H(+) => a ribonucleotide in RNA + S-adenosyl-L-methionine
label_lc: a 2'-o-methylribonucleotide in rna + s-adenosyl-l-homocysteine + h(+) => a ribonucleotide in rna + s-adenosyl-l-methionine