Actomyosin


a complex protein, consisting of and , that is the major constituent of skeletal muscle and is thought to interact with ATP to cause muscle contraction.
noun
a complex protein in skeletal muscle that is formed by actin and myosin and which, when stimulated, shortens to cause muscle contraction

actomyosin ac·to·my·o·sin (āk’tə-mī’ə-sĭn)
n.
A protein complex that is the essential contractile substance of muscle, composed of the globulin myosin and actin.

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