X-ray diffraction study on mammalian visceral smooth muscles in resting and activated states

@article{Watanabe1993XrayDS,
  title={X-ray diffraction study on mammalian visceral smooth muscles in resting and activated states},
  author={Masaru Watanabe and Shigeru Takemori and Naoto Yagi},
  journal={Journal of Muscle Research & Cell Motility},
  year={1993},
  volume={14},
  pages={469-475}
}
Structural changes of guinea pig taenia coli and rat anococcygeus muscle during contraction were studied by X-ray diffraction. The diffraction pattern of the taenia coli showed the 14.4-nm myosin reflection, the 5.9-nm actin layer-line and a diffuse equatorial peak at 1/11.4 nm-1. On application of carbachol, the muscle contracted and the intensity of the 14.4-nm reflection showed a concentration-dependent decrease: the maximum decrease was 24% at 2×10-5 M. Such an intensity decrease was not… CONTINUE READING
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