a 5-methylcytidine in 28S rRNA + S-adenosyl-L-homocysteine + H(+) => a cytidine in 28S rRNA + S-adenosyl-L-methionine
a 5-methylcytidine in 28s rrna + s-adenosyl-l-homocysteine + h(+) => a cytidine in 28s rrna + s-adenosyl-l-methionine
a 5-methylcytidine in 28S rRNA + S-adenosyl-L-homocysteine + H(+) => a cytidine in 28S rRNA + S-adenosyl-L-methionine
a 5-methylcytidine in 28s rrna + s-adenosyl-l-homocysteine + h(+) => a cytidine in 28s rrna + s-adenosyl-l-methionine