Question: what are the substrates and products of a reaction that is catalyzed by dhfr?
Answer: REACTION CATALYSED BY DHFR. THE REACTANT SUBSTRATE IS DHF (DIHYDROFOLATE), THE + PRODUCT SUBSTRATE IS THF (TETRAHYDROFOLATE) AND COFACTOR IS NADPH/NADP (NICOTINAMIDE 4 ADENINE DINUCLEUTIDE PHOSPHATE.