Dihydrofolate Reductase (DHFR) is one of the key enzymes in nucleic acid metabolism and the main target enzyme in cancer drug therapy, and has been widely studied in recent years.<br/>
The detection principle of this kit is as follows: DHFR catalyzes substrate reactions to consume NADPH. NADPH has a characteristic absorption peak at 340 nm. The activity of DHFR can be characterized by measuring the rate of decrease in absorbance at 340 nm.