5,10-methylenetetrahydrofolate + uridine(34) in tRNA + taurine + A => 5-taurinomethyluridine(34) in tRNA + 7,8-dihydrofolate + AH2
5,10-methylenetetrahydrofolate + uridine(34) in trna + taurine + a => 5-taurinomethyluridine(34) in trna + 7,8-dihydrofolate + ah2
5,10-methylenetetrahydrofolate + uridine(34) in tRNA + taurine + A => 5-taurinomethyluridine(34) in tRNA + 7,8-dihydrofolate + AH2
5,10-methylenetetrahydrofolate + uridine(34) in trna + taurine + a => 5-taurinomethyluridine(34) in trna + 7,8-dihydrofolate + ah2