Abstract
In chemically skinned chicken gizzard smooth muscle fibers investigated shortly after preparation, a contraction may be induced by calcium and calmodulin which is independent of myosin phosphorylation at intermediate Ca2+-concentrations. However, fibers stored for a prolonged period also contract in the absence of exogenous calmodulin and exhibit a close relationship between force development and myosin phosphorylation.
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Wagner, J., Rüegg, J.C. Skinned smooth muscle: calcium-calmodulin activation independent of myosin phosphorylation. Pflugers Arch. 407, 569–571 (1986). https://doi.org/10.1007/BF00657520
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DOI: https://doi.org/10.1007/BF00657520