preferred_name: uridine(1939) in 23S rRNA + S-adenosyl-L-methionine => 5-methyluridine(1939) in 23S rRNA + S-adenosyl-L-homocysteine + H(+)
preferred_name_lc: uridine(1939) in 23s rrna + s-adenosyl-l-methionine => 5-methyluridine(1939) in 23s rrna + s-adenosyl-l-homocysteine + h(+)
label: uridine(1939) in 23S rRNA + S-adenosyl-L-methionine => 5-methyluridine(1939) in 23S rRNA + S-adenosyl-L-homocysteine + H(+)
label_lc: uridine(1939) in 23s rrna + s-adenosyl-l-methionine => 5-methyluridine(1939) in 23s rrna + s-adenosyl-l-homocysteine + h(+)