Abstract
1. The kinetics of oxidation of butan-1-ol and propan-2-ol by NAD+, catalysed by yeast alcohol dehydrogenase, were studied at 25 degrees C from pH 5.5 to 10, and at pH 7.05 from 14 degrees to 44 degrees C, 2. Under all conditions studied the results are consistent with a mechanism whereby some dissociation of coenzyme from the active enzyme-NAD+-alcohol ternary complexes occurs, and the mechanism is therefore not strictly compulsory order. 3. A primary 2H isotopic effect on the maximum rates of oxidation of [1-2H2]butan-1-ol and [2H7]propan-2-ol was found at 25 degrees C over the pH range 5.5-10. Further, in stopped-flow experiments at pH 7.05 and 25 degrees C, there was no transient formation of NADH in the oxidation of butan-1-ol and propan-2-ol. The principal rate-limiting step in the oxidation of dependence on pH of the maximum rates of oxidation of butan-1-ol and propan-2-ol is consisten with the possibility that histidine and cysteine residues may affect or control catalysis.
Full text
PDF






Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Brooks R. L., Shore J. D. The effects of pH and temperature on hydrogen transfer in the liver alcohol dehydrogenase mechanism. J Biol Chem. 1972 Apr 25;247(8):2382–2383. [PubMed] [Google Scholar]
- Bühner M., Sund H. Yeast alcohol dehydrogenase: SH groups, disulfide groups, quaternary structure, and reactivation by reductive cleavage of disulfide groups. Eur J Biochem. 1969 Nov;11(1):73–79. doi: 10.1111/j.1432-1033.1969.tb00741.x. [DOI] [PubMed] [Google Scholar]
- DALZIEL K. KINETIC STUDIES OF LIVER ALCOHOL DEHYDROGENASE AND PH EFFECTS WITH COENZYME PREPARATIONS OF HIGH PURITY. J Biol Chem. 1963 Aug;238:2850–2858. [PubMed] [Google Scholar]
- DALZIEL K. Kinetic studies of liver alcohol dehydrogenase. Biochem J. 1962 Aug;84:244–254. doi: 10.1042/bj0840244. [DOI] [PMC free article] [PubMed] [Google Scholar]
- DALZIEL K. The preparation and properties of crystalline alcohol dehydrogenase from liver. Biochem J. 1961 Aug;80:440–445. doi: 10.1042/bj0800440. [DOI] [PMC free article] [PubMed] [Google Scholar]
- DALZIEL K. The purification of nicotinamide adenine dinucleotide and kinetic effects of nucleotide impurities. J Biol Chem. 1963 Apr;238:1538–1543. [PubMed] [Google Scholar]
- Dalziel K., Dickinson F. M. The kinetics and mechanism of liver alcohol dehydrogenase with primary and secondary alcohols as substrates. Biochem J. 1966 Jul;100(1):34–46. doi: 10.1042/bj1000034. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Dickenson C. J., Dickinson F. M. A study of the pH- and temperature-dependence of the reactions of yeast alcohol dehydrogenase with ethanol, acetaldehyde and butyraldehyde as substrates. Biochem J. 1975 May;147(2):303–311. doi: 10.1042/bj1470303. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Dickinson F. M., Monger G. P. A study of the kinetics and mechanism of yeast alcohol dehydrogenase with a variety of substrates. Biochem J. 1973 Feb;131(2):261–270. doi: 10.1042/bj1310261. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Dickinson F. M. Role of the essential thiol groups of yeast alcohol dehydrogenase. Biochem J. 1972 Jan;126(1):133–138. doi: 10.1042/bj1260133. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Dickinson F. M. The binding of dihydronicotinamide--adenine dinucleotide and pyridine-3-aldehyde--adenine dinucleotide by yeast alcohol dehydrogenase. Biochem J. 1970 Dec;120(4):821–830. doi: 10.1042/bj1200821. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Dickinson M. Measurements of the concentration of active sites in preparations of yeast alcohol dehydrogenase. Eur J Biochem. 1974 Jan 3;41(1):31–36. doi: 10.1111/j.1432-1033.1974.tb03240.x. [DOI] [PubMed] [Google Scholar]
- Eklund H., Nordström B., Zeppezauer E., Söderlund G., Ohlsson I., Boiwe T., Brändén C. I. The structure of horse liver alcohol dehydrogenase. FEBS Lett. 1974 Aug 25;44(2):200–204. doi: 10.1016/0014-5793(74)80725-8. [DOI] [PubMed] [Google Scholar]
- Gibson Q. H., Milnes L. Apparatus for rapid and sensitive spectrophotometry. Biochem J. 1964 Apr;91(1):161–171. doi: 10.1042/bj0910161. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hollis D. P. A nuclear magnetic resonance study of substrate binding by alcohol dehydrogenases. Biochemistry. 1967 Jul;6(7):2080–2087. doi: 10.1021/bi00859a027. [DOI] [PubMed] [Google Scholar]
- Jörnvall H. Partial similarities between yeast and liver alcohol dehydrogenases. Proc Natl Acad Sci U S A. 1973 Aug;70(8):2295–2298. doi: 10.1073/pnas.70.8.2295. [DOI] [PMC free article] [PubMed] [Google Scholar]
- KAGI J. H., VALLEE B. L. The role of zinc in alcohol dehydrogenase. V. The effect of metal-binding agents on thestructure of the yeast alcohol dehydrogenase molecule. J Biol Chem. 1960 Nov;235:3188–3192. [PubMed] [Google Scholar]
- Morris D. L., McKinley-McKee J. S. The histidines in liver alcohol dehydrogenase. Chemical modification with diethylpyrocarbonate. Eur J Biochem. 1972 Sep 25;29(3):515–520. doi: 10.1111/j.1432-1033.1972.tb02016.x. [DOI] [PubMed] [Google Scholar]
- SILVERSTEIN E., BOYER P. D. EQUILIBRIUM REACTION RATES AND THE MECHANISMS OF LIVER AND YEAST ALCOHOL DEHYDROGENASE. J Biol Chem. 1964 Nov;239:3908–3914. [PubMed] [Google Scholar]
