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酶促反应动力学

Dynamics of enzymatic reactions.

作者信息

Warshel A

出版信息

Proc Natl Acad Sci U S A. 1984 Jan;81(2):444-8. doi: 10.1073/pnas.81.2.444.

DOI:10.1073/pnas.81.2.444
PMID:6582500
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC344693/
Abstract

The detailed molecular dynamics of an actual bond-breaking event in a fluctuating enzyme substrate complex is simulated. The method developed allows one to explore what type of fluctuations are involved in enzymatic reactions and to evaluate entropic contributions to enzyme catalysis. The fluctuations of the enzyme electrostatic potential are found to be a key dynamical factor in reactions that involve a large change in the polarity of the reacting bonds.

摘要

模拟了波动的酶-底物复合物中实际键断裂事件的详细分子动力学。所开发的方法使人们能够探索酶促反应中涉及何种类型的波动,并评估熵对酶催化的贡献。发现酶静电势的波动是涉及反应键极性发生重大变化的反应中的关键动力学因素。

相似文献

1
Dynamics of enzymatic reactions.酶促反应动力学
Proc Natl Acad Sci U S A. 1984 Jan;81(2):444-8. doi: 10.1073/pnas.81.2.444.
2
Calculations of enzymatic reactions: calculations of pKa, proton transfer reactions, and general acid catalysis reactions in enzymes.酶促反应的计算:酶中pKa、质子转移反应和一般酸催化反应的计算。
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Hydrogen tunneling links protein dynamics to enzyme catalysis.氢隧穿将蛋白质动力学与酶催化联系起来。
Annu Rev Biochem. 2013;82:471-96. doi: 10.1146/annurev-biochem-051710-133623.
4
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Mechanical catalysis on the centimetre scale.厘米尺度上的机械催化。
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Correlated conformational fluctuations during enzymatic catalysis: Implications for catalytic rate enhancement.酶催化过程中的相关构象波动:对催化速率提高的影响。
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Energetics of enzyme catalysis.酶催化的能量学
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The entropic contributions in vitamin B12 enzymes still reflect the electrostatic paradigm.维生素B12酶中的熵贡献仍然反映了静电范式。
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Empirical valence bond calculations of enzyme catalysis.
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本文引用的文献

1
Molecular dynamics of hydrogen bonds in bovine pancreatic trypsin inhibitor protein.牛胰蛋白酶抑制剂蛋白中氢键的分子动力学
Nature. 1981 Nov 26;294(5839):379-80. doi: 10.1038/294379a0.
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Calculations of enzymatic reactions: calculations of pKa, proton transfer reactions, and general acid catalysis reactions in enzymes.酶促反应的计算:酶中pKa、质子转移反应和一般酸催化反应的计算。
Biochemistry. 1981 May 26;20(11):3167-77. doi: 10.1021/bi00514a028.
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The internal dynamics of globular proteins.球状蛋白质的内部动力学。
CRC Crit Rev Biochem. 1981;9(4):293-349. doi: 10.3109/10409238109105437.
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The three-dimensional structure of an enzyme molecule.酶分子的三维结构。
Sci Am. 1966 Nov;215(5):78-90. doi: 10.1038/scientificamerican1166-78.
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Bicycle-pedal model for the first step in the vision process.视觉过程第一步的自行车踏板模型。
Nature. 1976 Apr 22;260(5553):679-83. doi: 10.1038/260679a0.
6
Theoretical studies of enzymic reactions: dielectric, electrostatic and steric stabilization of the carbonium ion in the reaction of lysozyme.酶促反应的理论研究:溶菌酶反应中碳正离子的介电、静电和空间稳定作用
J Mol Biol. 1976 May 15;103(2):227-49. doi: 10.1016/0022-2836(76)90311-9.
7
Temperature-dependent X-ray diffraction as a probe of protein structural dynamics.温度依赖型X射线衍射作为蛋白质结构动力学的一种探测手段
Nature. 1979 Aug 16;280(5723):558-63. doi: 10.1038/280558a0.
8
Viscosity-dependent structural fluctuations in enzyme catalysis.酶催化中与粘度相关的结构波动
Biochemistry. 1979 Apr 3;18(7):1269-75. doi: 10.1021/bi00574a023.
9
Enzyme dynamics: the statistical physics approach.酶动力学:统计物理学方法
Annu Rev Biophys Bioeng. 1979;8:69-97. doi: 10.1146/annurev.bb.08.060179.000441.
10
Dynamics of activated processes in globular proteins.球状蛋白质中活化过程的动力学
Proc Natl Acad Sci U S A. 1979 Aug;76(8):3585-9. doi: 10.1073/pnas.76.8.3585.