label: 5-methylcytidine(1407) in 16S rRNA + S-adenosyl-L-homocysteine + H(+) => cytidine(1407) in 16S rRNA + S-adenosyl-L-methionine
label_lc: 5-methylcytidine(1407) in 16s rrna + s-adenosyl-l-homocysteine + h(+) => cytidine(1407) in 16s rrna + s-adenosyl-l-methionine