Kinetics of irreversible enzyme inhibition: The interpretation of the fractional enzyme activity vs. extent of protein modification plot
โ Scribed by Emmanuel T. Rakitzis
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 491 KB
- Volume
- 85
- Category
- Article
- ISSN
- 0022-5193
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Some years ago, a systematic study on the kinetics of irreversible modification of enzyme activity was presented by Tsou (1988, Adv. Enzymol. Relat. Areas molec. Biol. 61, 381-436). This paper presents a discussion of the theoretical aspects of Tsou's method for the determination of the rate constan
The kinetic approach previously developed (Tsou 1988, Adv. Enzymok 61,381-386) for the substrate reaction in the presence of modifier is based on the supposition that [Yo]>> [Eo]. However, the presence of the modifier in large excess of the enzyme sometimes leads to a rate of modification which is t
Time-dependent inhibition of enzymes by active-site-directed reagents is usually assumed to be a pseudo-first order process. However, we have noticed that the semilogarithmic plots reported by many workers and obtained by ourselves (for the inhibition of diamine oxidase by carbonyl group reagents) a