uridine(1939) in 23S rRNA + S-adenosyl-L-methionine = 5-methyluridine(1939) in 23S rRNA + S-adenosyl-L-homocysteine + H(+)
uridine(1939) in 23s rrna + s-adenosyl-l-methionine = 5-methyluridine(1939) in 23s rrna + s-adenosyl-l-homocysteine + h(+)
"23S rRNA (uracil(1939)-C(5))-methyltransferase"
"23s rrna (uracil(1939)-c(5))-methyltransferase"