A residence-time analysis of enzyme kinetics.

A residence-time analysis of enzyme kinetics.
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酶动力学的停留时间分析。

DOI:
10.1042/bj2430159
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发表时间:
1987
期刊:
The Biochemical journal
影响因子:
--
通讯作者:
Hackney,DD
Hackney,DD
中科院分区:
--
文献类型:
--
作者:
Sines,JJ;Hackney,DD

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酶动力学采用“首次通过时间”分析。结果表明,以这种方式确定的停留时间是直接相关的稳态参数,是特别有用的同位素交换分析。一个简单的线性手段是用来计算这些停留时间,使这种方法很容易适用于复杂模型的数值评估。这种随机类型的方法提供了一种替代方案,避免了经典的稳态近似,即酶中间体的浓度是恒定的。相反,稳态被定义为初始混合后酶状态的随机化,这是由于单个酶分子在不同时间完成周转。
A ‘first-passage-time’ analysis is applied to enzyme kinetics. It is shown that the residence times determined in this way are directly related to the steady-state parameters and are particularly useful in analysis of isotopic exchange. A simple linear means is used for the calculation of these residence times that makes this method easily applicable to the numerical evaluation of complex models. This stochastic type of approach provides an alternative that avoids the classical steady-state approximation that the concentrations of enzyme intermediates are constant. Instead, steady state is defined as the randomization of the states of the enzyme following initial mixing due to completion of the turnovers of individual enzyme molecules at different times.
日本声学学会 1985 年秋季研究会议论文集 I.(1985)。
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