myosin

American  

[mahy-uh-sin] / ˈmaɪ ə sɪn /

noun

Biochemistry.

1. the principal contractile protein of muscle.

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myosin British  

/ ˈmaɪəsɪn /

noun

1. the chief protein of muscle that interacts with actin to form actomyosin during muscle contraction; it is also present in many other cell types

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myosin Scientific  

/ mī′ə-sĭn /

1. 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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Etymology

Origin of myosin

First recorded in 1865–70; my- + -ose ² + -in ²

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Example Sentences

See Examples For:

myosin

While myosin drives cell movement within the embryo, there are also external forces, or disturbances, that push and pull against the embryo as well.

From Science Daily ● May 28, 2024

The guideline includes recommendations for adding cardiac myosin inhibitors, a new class of medication for patients with symptomatic obstructive HCM who do not get adequate symptom relief from first-line drug therapy.

From Science Daily ● May 8, 2024

They assessed whether hibernation affects the structure of two myosin proteins from the Thirteen-lined ground squirrel: Myh7 and Myh2.

From Science Daily ● Feb. 20, 2024

First, they looked to establish whether the myosin states, and their respective ATP consumption rates, were different between active periods and hibernation.

From Science Daily ● Feb. 20, 2024

The proteids, frequently spoken of as the nitrogenous foods, are rich in one or more of the following organic substances: albumen, casein, fibrin, gelatine, myosin, gluten, and legumin.

From A Practical Physiology by Albert F. Blaisdell

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