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关于肌球蛋白亚片段1中能量转换的机制。

On the mechanism of energy transduction in myosin subfragment 1.

作者信息

Botts J, Takashi R, Torgerson P, Hozumi T, Muhlrad A, Mornet D, Morales M F

出版信息

Proc Natl Acad Sci U S A. 1984 Apr;81(7):2060-4. doi: 10.1073/pnas.81.7.2060.

DOI:10.1073/pnas.81.7.2060
PMID:6585786
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC345436/
Abstract

It is proposed that the myosin subfragment 1 moiety of the muscle contractile apparatus is a self-contained "engine" whose operational plan is based on the interactive nature of ATP (or degradation intermediate) binding and actin binding, made possible by an intersite communication system. It is suggested that the spatial information required for examining this engine can, at least provisionally, be derived from fluorescence resonance energy transfer measurements interpreted by the Förster equation and that the existence of an intersite communication system can be deduced from piece-wise detection of interacting pairs of points.

摘要

有人提出,肌肉收缩装置的肌球蛋白亚片段1部分是一个独立的“引擎”,其运作方案基于ATP(或降解中间体)结合与肌动蛋白结合的相互作用性质,这是由位点间通信系统实现的。有人认为,用于研究这个“引擎”所需的空间信息至少在暂时情况下,可以从由Förster方程解释的荧光共振能量转移测量中获得,并且位点间通信系统的存在可以从相互作用点对的逐段检测中推导出来。

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本文引用的文献

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EXPERIMENTAS ON THE MODIFICATION OF MYOSIN NUCLEOSIDETRIPHOSPHATASE.肌球蛋白核苷三磷酸酶修饰实验
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Studies on "active centers" of L-myosin.关于L-肌球蛋白“活性中心”的研究。
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On the active site of myosin A-adenosine triphosphatase. I. Reaction of the enzyme with trinitrobenzenesulfonate.
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The relationship between sulfhydryl groups and the activation of myosin adenosinetriphosphatase.巯基与肌球蛋白三磷酸腺苷酶激活之间的关系。
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5
Identification of myosin-binding sites on the actin sequence.肌动蛋白序列上肌球蛋白结合位点的鉴定。
Biochemistry. 1982 Jul 20;21(15):3654-61. doi: 10.1021/bi00258a020.
6
Millisecond time-resolved changes in x-ray reflections from contracting muscle during rapid mechanical transients, recorded using synchrotron radiation.利用同步辐射记录的在快速机械瞬变期间收缩肌肉的X射线反射的毫秒级时间分辨变化。
Proc Natl Acad Sci U S A. 1981 Apr;78(4):2297-301. doi: 10.1073/pnas.78.4.2297.
7
Tryptic digestion as a probe of myosin S-1 conformation.胰蛋白酶消化作为肌球蛋白 S-1 构象的一种探测手段。
Proc Natl Acad Sci U S A. 1982 Feb;79(4):958-62. doi: 10.1073/pnas.79.4.958.
8
Proteolytic approach to structure and function of actin recognition site in myosin heads.肌球蛋白头部肌动蛋白识别位点结构与功能的蛋白水解方法
Biochemistry. 1981 Apr 14;20(8):2110-20. doi: 10.1021/bi00511a007.
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Structure of myosin subfragment 1 from low-angle X-ray scattering.基于低角度X射线散射的肌球蛋白亚片段1的结构
Biochemistry. 1980 Aug 19;19(17):4103-8. doi: 10.1021/bi00558a031.
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The sequence of the NH2-terminal 204-residue fragment of the heavy chain of rabbit skeletal muscle myosin.兔骨骼肌肌球蛋白重链氨基末端204个氨基酸残基片段的序列。
J Biol Chem. 1983 Nov 10;258(21):13100-10.