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  • Title: Small-angle X-ray scattering from myosin heads in relaxed and rigor frog skeletal muscles.
    Author: Poulsen FR, Lowy J.
    Journal: Nature; ; 303(5913):146-52. PubMed ID: 6843666.
    Abstract:
    Low-angle X-ray diffraction patterns from relaxed and non-overlap rigor muscles show a central region of diffuse scattering (disk) which is circularly symmetrical, behaves as solution scattering and comes predominantly from myosin heads. In full-overlap rigor the disk is compressed in the diagonal direction, indicating that the myosin heads have a bent shape and a preferred orientation consistent with a 45 degree angle of attachment to actin.
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