label: N(3)-methyluridine(1498) in 16S rRNA + S-adenosyl-L-homocysteine + H(+) => uridine(1498) in 16S rRNA + S-adenosyl-L-methionine
label_lc: n(3)-methyluridine(1498) in 16s rrna + s-adenosyl-l-homocysteine + h(+) => uridine(1498) in 16s rrna + s-adenosyl-l-methionine