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1
Two-step ligand binding and cooperativity. A model to describe the cooperative binding of myosin subfragment 1 to regulated actin.两步配体结合与协同性。一种描述肌球蛋白亚片段1与调节型肌动蛋白协同结合的模型。
Biophys J. 1987 Aug;52(2):215-20. doi: 10.1016/S0006-3495(87)83208-3.
2
The dynamics of the interaction between myosin subfragment 1 and pyrene-labelled thin filaments, from rabbit skeletal muscle.来自兔骨骼肌的肌球蛋白亚片段1与芘标记的细肌丝之间相互作用的动力学。
Proc R Soc Lond B Biol Sci. 1986 Oct 22;229(1254):85-95. doi: 10.1098/rspb.1986.0076.
3
Kinetics of actin-myosin binding. I. An exactly soluble one-variable model.肌动蛋白-肌球蛋白结合动力学。I. 一个完全可解的单变量模型。
Biophys J. 1987 Feb;51(2):245-8. doi: 10.1016/S0006-3495(87)83329-5.
4
Actin-tropomyosin activation of myosin subfragment 1 ATPase and thin filament cooperativity. The role of tropomyosin flexibility and end-to-end interactions.肌动蛋白-原肌球蛋白对肌球蛋白亚片段1 ATP酶的激活及细肌丝协同性。原肌球蛋白柔韧性及端对端相互作用的作用。
Biochemistry. 1997 Nov 4;36(44):13449-54. doi: 10.1021/bi971568w.
5
Pressure-relaxation studies of pyrene-labelled actin and myosin subfragment 1 from rabbit skeletal muscle. Evidence for two states of acto-subfragment 1.兔骨骼肌中芘标记的肌动蛋白和肌球蛋白亚片段1的压力松弛研究。肌动蛋白-亚片段1两种状态的证据。
Biochem J. 1985 Dec 1;232(2):351-6. doi: 10.1042/bj2320351.
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Regulation of the interaction between actin and myosin subfragment 1: evidence for three states of the thin filament.肌动蛋白与肌球蛋白亚片段1之间相互作用的调节:细肌丝三种状态的证据。
Biophys J. 1993 Aug;65(2):693-701. doi: 10.1016/S0006-3495(93)81110-X.
7
Kinetic and thermodynamic properties of the ternary complex between F-actin, myosin subfragment 1 and adenosine 5'-[beta, gamma-imido]triphosphate.肌动蛋白丝(F-肌动蛋白)、肌球蛋白亚片段1与腺苷5'-[β,γ-亚氨基]三磷酸之间三元复合物的动力学和热力学性质
Eur J Biochem. 1982 Nov 15;128(2-3):547-55. doi: 10.1111/j.1432-1033.1982.tb07000.x.
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Importance of internal regions and the overall length of tropomyosin for actin binding and regulatory function.原肌球蛋白的内部区域及全长对于肌动蛋白结合和调节功能的重要性。
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Cooperative turning on of myosin subfragment 1 adenosinetriphosphatase activity by the troponin-tropomyosin-actin complex.肌钙蛋白-原肌球蛋白-肌动蛋白复合物协同开启肌球蛋白亚片段1三磷酸腺苷酶活性
Biochemistry. 1988 Sep 6;27(18):6987-93. doi: 10.1021/bi00418a048.
10
The effect of nucleotide on the binding of myosin subfragment 1 to regulated actin.核苷酸对肌球蛋白亚片段1与调节型肌动蛋白结合的影响。
J Biol Chem. 1982 Dec 10;257(23):13993-9.

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1
Switching Muscles On and Off in Steps: The McKillop-Geeves Three-State Model of Muscle Regulation.逐步控制肌肉的收缩与舒张:麦基洛普-吉夫斯肌肉调节三态模型
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More Can Mean Less, or: Simplifying Sometimes Requires Ideas to Be More Complicated.多可能意味着少,或者说:简化有时需要让想法更复杂。
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The Hill model for binding myosin S1 to regulated actin is not equivalent to the McKillop-Geeves model.希尔模型不能等同于麦基尔洛普-吉夫斯模型,用于将肌球蛋白 S1 与调节肌动蛋白结合。
J Mol Biol. 2012 Mar 16;417(1-2):112-28. doi: 10.1016/j.jmb.2012.01.011. Epub 2012 Jan 28.
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The role of thin filament cooperativity in cardiac length-dependent calcium activation.细肌丝协同作用在心脏长度依赖性钙激活中的作用。
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Striated muscle regulation of isometric tension by multiple equilibria.横纹肌通过多重平衡调节等长张力。
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Physiological consequences of thin filament cooperativity for vertebrate striated muscle contraction: a theoretical study.细肌丝协同性对脊椎动物横纹肌收缩的生理影响:一项理论研究
J Muscle Res Cell Motil. 2006;27(1):21-35. doi: 10.1007/s10974-005-9049-y. Epub 2006 Feb 8.
7
Intensity of X-ray reflections from skeletal muscle thin filaments partially occupied with myosin heads: effect of cooperative binding.来自部分被肌球蛋白头部占据的骨骼肌细肌丝的X射线反射强度:协同结合的影响。
J Muscle Res Cell Motil. 2004;25(4-5):329-35. doi: 10.1007/s10974-004-6061-6.
8
Ca2+ and ionic strength dependencies of S1-ADP binding to actin-tropomyosin-troponin: regulatory implications.S1-ADP与肌动蛋白-原肌球蛋白-肌钙蛋白结合的钙离子和离子强度依赖性:调控意义
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Cooperative regulation of myosin-actin interactions by a continuous flexible chain I: actin-tropomyosin systems.连续柔性链对肌球蛋白-肌动蛋白相互作用的协同调节I:肌动蛋白-原肌球蛋白系统
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Cooperative behavior of molecular motors.分子马达的协同行为。
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本文引用的文献

1
ON THE NATURE OF ALLOSTERIC TRANSITIONS: A PLAUSIBLE MODEL.关于别构转变的本质:一个合理的模型。
J Mol Biol. 1965 May;12:88-118. doi: 10.1016/s0022-2836(65)80285-6.
2
Theoretical model for the cooperative equilibrium binding of myosin subfragment 1 to the actin-troponin-tropomyosin complex.肌球蛋白亚片段1与肌动蛋白-肌钙蛋白-原肌球蛋白复合物协同平衡结合的理论模型。
Proc Natl Acad Sci U S A. 1980 Jun;77(6):3186-90. doi: 10.1073/pnas.77.6.3186.
3
The effect of nucleotide on the binding of myosin subfragment 1 to regulated actin.核苷酸对肌球蛋白亚片段1与调节型肌动蛋白结合的影响。
J Biol Chem. 1982 Dec 10;257(23):13993-9.
4
Evidence for cross-bridge attachment in relaxed muscle at low ionic strength.低离子强度下松弛肌肉中横桥附着的证据。
Proc Natl Acad Sci U S A. 1982 Dec;79(23):7288-91. doi: 10.1073/pnas.79.23.7288.
5
Kinetic studies of the cooperative binding of subfragment 1 to regulated actin.亚片段1与调节型肌动蛋白协同结合的动力学研究。
Proc Natl Acad Sci U S A. 1980 Dec;77(12):7209-13. doi: 10.1073/pnas.77.12.7209.
6
Cooperative binding of myosin subfragment-1 to the actin-troponin-tropomyosin complex.肌球蛋白亚片段-1与肌动蛋白-肌钙蛋白-原肌球蛋白复合物的协同结合。
Proc Natl Acad Sci U S A. 1980 May;77(5):2616-20. doi: 10.1073/pnas.77.5.2616.
7
Kinetic model for the interaction of myosin subfragment 1 with regulated actin.肌球蛋白亚片段1与调节型肌动蛋白相互作用的动力学模型。
Biophys J. 1983 Nov;44(2):145-51. doi: 10.1016/S0006-3495(83)84286-6.
8
Inhibition of actomyosin ATPase activity by troponin-tropomyosin without blocking the binding of myosin to actin.肌钙蛋白-原肌球蛋白对肌动球蛋白ATP酶活性的抑制作用,而不阻断肌球蛋白与肌动蛋白的结合。
J Biol Chem. 1982 Mar 10;257(5):2432-7.
9
Regulation and kinetics of the actin-myosin-ATP interaction.肌动蛋白-肌球蛋白-ATP相互作用的调节与动力学
Annu Rev Biochem. 1980;49:921-56. doi: 10.1146/annurev.bi.49.070180.004421.
10
Kinetics of acto-S1 interaction as a guide to a model for the crossbridge cycle.肌动蛋白与肌球蛋白S1片段相互作用的动力学作为肌动球蛋白横桥循环模型的指导
J Muscle Res Cell Motil. 1984 Aug;5(4):351-61. doi: 10.1007/BF00818255.

两步配体结合与协同性。一种描述肌球蛋白亚片段1与调节型肌动蛋白协同结合的模型。

Two-step ligand binding and cooperativity. A model to describe the cooperative binding of myosin subfragment 1 to regulated actin.

作者信息

Geeves M A, Halsall D J

机构信息

Department of Biochemistry, University of Bristol, United Kingdom.

出版信息

Biophys J. 1987 Aug;52(2):215-20. doi: 10.1016/S0006-3495(87)83208-3.

DOI:10.1016/S0006-3495(87)83208-3
PMID:3663829
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC1330072/
Abstract

The binding of actin to myosin subfragment 1 (S1) has been shown to occur as a two-step reaction. In the first step actin is weakly bound and then the complex isomerizes to the "rigor type" acto-S1 complex (Coates, J. H., A. H. Criddle, and M. A. Geeves, 1985 Biochem. J., 232:351-356). We propose here a model in which troponin/tropomyosin (Tn/Tm) controls the actin-S1 interaction by inhibiting the isomerization step. In this model the (actin)7 Tn/Tm unit is assumed to exist in two states: open and closed. S1 can bind to either of the two states but only the open form allows the isomerization reaction to take place. We demonstrate that this model can account for the cooperative binding of S1 and S1 nucleotide complexes to actin. The model provides a way of integrating both the effects of calcium and nucleotide on actin-S1 interactions.

摘要

肌动蛋白与肌球蛋白亚片段1(S1)的结合已被证明是一个两步反应。第一步,肌动蛋白被弱结合,然后复合物异构化为“僵直型”肌动蛋白 - S1复合物(科茨,J. H.,A. H. 克里德尔,和M. A. 吉夫斯,1985年,《生物化学杂志》,232:351 - 356)。我们在此提出一个模型,其中肌钙蛋白/原肌球蛋白(Tn/Tm)通过抑制异构化步骤来控制肌动蛋白 - S1相互作用。在这个模型中,(肌动蛋白)7 Tn/Tm单元被假定存在两种状态:开放和关闭。S1可以与这两种状态中的任何一种结合,但只有开放形式允许异构化反应发生。我们证明这个模型可以解释S1和S1核苷酸复合物与肌动蛋白的协同结合。该模型提供了一种整合钙和核苷酸对肌动蛋白 - S1相互作用影响的方法。