dUMP + (6R)-5,10-methylene-5,6,7,8-tetrahydrofolate + H2O = 5-hydroxymethyl-dUMP + (6S)-5,6,7,8-tetrahydrofolate
dump + (6r)-5,10-methylene-5,6,7,8-tetrahydrofolate + h2o = 5-hydroxymethyl-dump + (6s)-5,6,7,8-tetrahydrofolate
dUMP + (6R)-5,10-methylene-5,6,7,8-tetrahydrofolate + H2O = 5-hydroxymethyl-dUMP + (6S)-5,6,7,8-tetrahydrofolate
dump + (6r)-5,10-methylene-5,6,7,8-tetrahydrofolate + h2o = 5-hydroxymethyl-dump + (6s)-5,6,7,8-tetrahydrofolate