Electron microscopy of the actin-myosin head complex in the presence of ATP.

@article{Frado1992ElectronMO,
  title={Electron microscopy of the actin-myosin head complex in the presence of ATP.},
  author={L L Frado and Roger Craig},
  journal={Journal of molecular biology},
  year={1992},
  volume={223 2},
  pages={391-7}
}
The structure of the actin-myosin head complex during the ATPase cycle has been studied by electron microscopy of negatively stained acto-heavy-meromyosin. In the absence of ATP, heavy meromyosin molecules generally showed a regular, angled appearance, with both heads attached to the actin filament. In the presence of ATP, attached molecules showed a less ordered structure, often with only one head attached. We conclude that configurations other than the rigor structure occur during the… CONTINUE READING
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