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Molecular mechanism of the contractile cycle of muscle

机译:肌肉收缩循环的分子机制

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Motility is a characteristic feature of all living organisms, Myosin and actin together constitute the contractile machinery of the cell. Myosin is an asymmetric protein composed of two globular heads attached to a long tail and forms the thick filament, while actin is a double-helical protein making up the thin filament. Considerable effort has been spent over the past several decades to understand the physicochemical basis of energy conversion by the actomyosin system of muscle; yet the molecular mechanism of muscle contraction remains one of the outstanding enigmas in biology, Here we propose a novel, comprehensive molecular mechanism of the contractile cycle of muscle, Specifically, we address the mechanisms of force generation, energy transduction and storage, and subsequent utilization of the stored energy to perform useful work, Our original approach and insights elucidate the molecular mechanism of muscle contraction.
机译:运动性是所有活生物体的特征,肌球蛋白和肌动蛋白共同构成细胞的收缩机制。肌球蛋白是一种不对称蛋白质,由连接到一条长尾巴的两个球形头部组成,并形成粗细丝,而肌动蛋白是构成细细丝的双螺旋蛋白。在过去的几十年中,人们花费了大量的精力来理解肌动球蛋白系统能量转换的物理化学基础。然而,肌肉收缩的分子机制仍然是生物学中最杰出的谜团之一。在这里,我们提出了一种新颖,全面的肌肉收缩循环分子机制,特别是,我们研究了力的产生,能量传导和储存以及随后利用的机制。利用储存的能量来执行有用的工作,我们的原始方法和见解阐明了肌肉收缩的分子机制。

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