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myosin
[ mahy-uh-sin ]
noun
, Biochemistry.
- the principal contractile protein of muscle.
myosin
/ ˈmaɪəsɪn /
noun
- the chief protein of muscle that interacts with actin to form actomyosin during muscle contraction; it is also present in many other cell types
myosin
/ mī′ə-sĭn /
- A protein found in muscle tissue as a thick filament made up of an aggregate of similar proteins. Myosin and the protein actin form the contractile units (sarcomeres) of skeletal muscle. In the sarcomere, actin and myosin filaments slide past each other to cause the shortening of a muscle fiber.
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Word History and Origins
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Word History and Origins
Origin of myosin1
C19: from myo- + -ose ² + -in
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Example Sentences
Titin wraps around the myosin filaments that compose individual muscle fibers, and when muscle fibers contract, a part of titin becomes exposed that’s otherwise inaccessible.
From Popular-Science
The pemmican we used consisted of powdered dried beef (containing the important protein, myosin) and 50 per cent.
From Project Gutenberg
Into this special class fall myosin (of the muscles), fibrinogen (of the blood) and vitellin (of egg yolk).
From Project Gutenberg
Other forms of protein are globulin and myosin, which form the actual muscle-substance.
From Project Gutenberg
Another similar experiment made with antipeptone, formed from the myosin of muscle-tissue, gave like results.
From Project Gutenberg
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