dTMP + NADP(+) + H2O => dUMP + formaldehyde + NADPH + H(+)
dtmp + nadp(+) + h2o => dump + formaldehyde + nadph + h(+)
dTMP + NADP(+) + H2O => dUMP + formaldehyde + NADPH + H(+)
dtmp + nadp(+) + h2o => dump + formaldehyde + nadph + h(+)