Myosin Heads Do Not Move on Activation in Highly Stretched Vertebrate Striated Muscle
- 18 January 1980
- journal article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 207 (4428) , 307-308
- https://doi.org/10.1126/science.6444254
Abstract
Highly stretched muscles in which thick and thin filaments no longer overlap produce little or no tension on activation. In preparations producing no tension, the 42.9-nanometer myosin layer line shown in x-ray diffraction patterns does not become weaker. This suggests that myosin heads do not move from their resting positions in the absence of actin.Keywords
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