myosin /my·o·sin/ (mi´o-sin) a protein of the myofibril, occurring chiefly in the A band; with actin it forms actomyosin, which is responsible for the contractile properties of muscle.
myosin
myosin,
myosin
my·o·sin (m   -s n)n. The commonest protein in muscle cells, a globulin responsible for the elastic and contractile properties of muscle and combining with actin to form actomyosin. |
myosin
[mī′əsin]
Etymology: Gk, mys + in, within
a protein that makes up close to one half of the total protein in muscle tissue. The interaction between myosin and another protein, actin, is essential for muscle contraction. See also actino.
myosin,
n one of the two proteins responsible for muscle contraction, the other protein being actin. Contraction occurs when the two protein bundles slide over one another. See also actin.
myosin
(mī´
sin´),
n a cardiac and skeletal muscle protein that makes up close to one half of the proteins that occur in muscle tissue. The interaction of myosin and actin is essential for muscle contraction.
sin´), n a cardiac and skeletal muscle protein that makes up close to one half of the proteins that occur in muscle tissue. The interaction of myosin and actin is essential for muscle contraction.
myosin
one of the two main proteins of muscle. Myosin and actin are the proteins involved in contraction of muscle fibers.
myosin ATPase
catalyzes the physicochemical interactions of actin and myosin during muscle contraction.
myosin light chains
each molecule of smooth muscle cell myosin contains two pairs of light molecular weight chains (MLCs), one alkali MLC and one regulatory MLC.
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