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

To measure the rate of ATP consumption by myosin, they used a specialised test called the Mant-ATP chase assay.

From Science Daily ● Feb. 20, 2024

However, they did discover that the ATP turnover time of myosin molecules in both formations was lower in IBA and torpor compared to the SA phase, leading to an unexpected overall increase in ATP consumption.

From Science Daily ● Feb. 20, 2024

They therefore conclude that Myh2 hyper-phosphorylation is specifically associated with torpor, rather than hibernation in general, and propose that this serves to increase myosin stability in small mammals.

From Science Daily ● Feb. 20, 2024

In animal foods myosin in meat and vitellin, found in the yolk of the egg, and some of the proteids of the blood, are examples of globulins.

From Human Foods and Their Nutritive Value by Harry Snyder

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