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酶内速率限制分析:速率常数的通量控制系数与单向速率、单个分离酶的速率常数和热力学参数之间的关系。

The analysis of rate limitation within enzymes: relations between flux control coefficients of rate constants and unidirectional rates, rate constants and thermodynamic parameters of single isolated enzymes.

作者信息

Brown G C, Cooper C E

机构信息

Department of Biochemistry and Molecular Biology, University College, London, U.K.

出版信息

Biochem J. 1994 May 15;300 ( Pt 1)(Pt 1):159-64. doi: 10.1042/bj3000159.

DOI:10.1042/bj3000159
PMID:8198529
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC1138138/
Abstract

The extent to which a rate constant or step within an enzyme mechanism limits the net enzyme rate in a particular condition can be quantified as a flux control coefficient. We derive here a number of relations between the control coefficients and the unidirectional rates, rate constants, and thermodynamic parameters of the enzyme. These and other relations are used to suggest a number of methods for experimentally measuring control coefficients within enzymes.

摘要

在特定条件下,酶机制中的速率常数或步骤对净酶促反应速率的限制程度可以用通量控制系数来量化。我们在此推导出了控制系数与酶的单向速率、速率常数和热力学参数之间的一些关系。这些关系以及其他关系被用于提出一些在酶内实验测量控制系数的方法。

相似文献

1
The analysis of rate limitation within enzymes: relations between flux control coefficients of rate constants and unidirectional rates, rate constants and thermodynamic parameters of single isolated enzymes.酶内速率限制分析:速率常数的通量控制系数与单向速率、单个分离酶的速率常数和热力学参数之间的关系。
Biochem J. 1994 May 15;300 ( Pt 1)(Pt 1):159-64. doi: 10.1042/bj3000159.
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本文引用的文献

1
Control analysis applied to single enzymes: can an isolated enzyme have a unique rate-limiting step?应用于单一酶的控制分析:一种孤立的酶能有独特的限速步骤吗?
Biochem J. 1993 Aug 15;294 ( Pt 1)(Pt 1):87-94. doi: 10.1042/bj2940087.
2
Minimal kinetic mechanism and general equation for deuterium isotope effects on enzymic reactions: uncertainty in detecting a rate-limiting step.氘同位素效应影响酶促反应的最小动力学机制和通用方程:检测限速步骤的不确定性
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The proton inventory technique.质子总量技术。
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The control of flux.通量的控制
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Metabolic control and its analysis. Additional relationships between elasticities and control coefficients.代谢控制及其分析。弹性与控制系数之间的其他关系。
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Construction and evaluation of the kinetic scheme associated with dihydrofolate reductase from Escherichia coli.
Biochemistry. 1987 Jun 30;26(13):4085-92. doi: 10.1021/bi00387a052.
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Modulation of cytochrome oxidase kinetics by indirect antibody action.间接抗体作用对细胞色素氧化酶动力学的调节
FEBS Lett. 1989 Jul 3;250(2):453-8. doi: 10.1016/0014-5793(89)80775-6.
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Computer modeling of Ca2+ pump function of Ca2+-Mg2+-ATPase of sarcoplasmic reticulum.肌浆网Ca2+-Mg2+-ATP酶Ca2+泵功能的计算机模拟
Physiol Rev. 1987 Jan;67(1):244-84. doi: 10.1152/physrev.1987.67.1.244.
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Beta-lactamases as fully efficient enzymes. Determination of all the rate constants in the acyl-enzyme mechanism.β-内酰胺酶作为完全有效的酶。酰基酶机制中所有速率常数的测定。
Biochem J. 1990 Mar 15;266(3):853-61.