The kinetics of the histochemical method for dihydrofolate dehydrogenase (dihydrofolate reductase)
- PMID: 478995
- DOI: 10.1007/BF00537012
The kinetics of the histochemical method for dihydrofolate dehydrogenase (dihydrofolate reductase)
Abstract
The purpose of the present investigation is to report some histochemical and cytospectrophotometric observations providng more objective evidence for the specific activity of the histochemical method for dihydrofolate reductase activity (5.6.7.8-tetrahydrofolate: E.C. 1.5.1.3). Kinetic factors of the enzymic reaction, such as fixation, pH, coenzymes, substrate concentration, Michaelis constant, temperature, time of incubation, aerobiosis, and anaerobiosis, activators and inhibitors, were investigated.
Similar articles
-
pH-Stat titration method for dihydrofolate reductase activity measurements: application to determination of substrate Michaelis constant and antifolate inhibition constant.Anal Biochem. 1986 Jan;152(1):1-5. doi: 10.1016/0003-2697(86)90110-7. Anal Biochem. 1986. PMID: 3954030
-
On the specificity of a histochemical method for localizing dihydrofolate dehydrogenase.Histochem J. 1972 Mar;4(2):87-90. doi: 10.1007/BF01004967. Histochem J. 1972. PMID: 4339489 No abstract available.
-
A histochemical method for dihydrofolate reductase.Histochem J. 1970 Jul;2(4):289-95. doi: 10.1007/BF01004997. Histochem J. 1970. PMID: 4112997 No abstract available.
-
Dihydrofolate reductase from Escherichia coli: the kinetic mechanism with NADPH and reduced acetylpyridine adenine dinucleotide phosphate as substrates.Biochemistry. 1988 Jul 26;27(15):5493-9. doi: 10.1021/bi00415a016. Biochemistry. 1988. PMID: 3052577
-
A possible histochemical mechanism of dihydrofolate reductase reaction.Morphol Embryol (Bucur). 1977 Apr-Jun;23(2):103-6. Morphol Embryol (Bucur). 1977. PMID: 16210