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基于倾斜薄片的昆虫僵直飞行肌肉的三维重建

Three-dimensional reconstruction of rigor insect flight muscle from tilted thin sections.

作者信息

Taylor K A, Reedy M C, Córdova L, Reedy M K

出版信息

Nature. 1984;310(5975):285-91. doi: 10.1038/310285a0.

DOI:10.1038/310285a0
PMID:6540369
Abstract

Rigor cross-bridges show two conformations paired within each 38.7-nm axial repeat. The two forms may express two stages of the cross-bridge cycle during contraction. Differing numbers of myosin heads per cross-bridge and associated helical changes in the thin filament distinguish the two forms and suggest that both myosin heads usually bind to a single thin filament.

摘要

僵直横桥在每个38.7纳米的轴向重复结构内呈现两种配对的构象。这两种形式可能代表收缩过程中横桥循环的两个阶段。每个横桥中肌球蛋白头部数量的差异以及细肌丝中相关的螺旋变化区分了这两种形式，并表明两个肌球蛋白头部通常都与单根细肌丝结合。

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Three-dimensional reconstruction of rigor insect flight muscle from tilted thin sections.基于倾斜薄片的昆虫僵直飞行肌肉的三维重建
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Rigor crossbridge structure in tilted single filament layers and flared-X formations from insect flight muscle.来自昆虫飞行肌肉的倾斜单丝层和喇叭形-X 结构中的强直横桥结构。
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Crossbridges in the complete unit cell of rigor insect flight muscle imaged by three-dimensional reconstruction from oblique sections.通过对斜截面进行三维重建成像的处于僵直状态昆虫飞行肌完整肌节中的横桥。
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Structure of the myosin crossbridge lattice in insect flight muscle.昆虫飞行肌中肌球蛋白横桥晶格的结构
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