a uridine in 21S rRNA + S-adenosyl-L-methionine <=> a 2'-O-methyluridine in 21S rRNA + S-adenosyl-L-homocysteine + H(+)
a uridine in 21s rrna + s-adenosyl-l-methionine <=> a 2'-o-methyluridine in 21s rrna + s-adenosyl-l-homocysteine + h(+)
a uridine in 21S rRNA + S-adenosyl-L-methionine <=> a 2'-O-methyluridine in 21S rRNA + S-adenosyl-L-homocysteine + H(+)
a uridine in 21s rrna + s-adenosyl-l-methionine <=> a 2'-o-methyluridine in 21s rrna + s-adenosyl-l-homocysteine + h(+)