myosin

American  

[mahy-uh-sin] / ˈmaɪ ə sɪn /

noun

Biochemistry.

1. the principal contractile protein of muscle.

---

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

---

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.

---

Etymology

Origin of myosin

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

---

Example Sentences

See Examples For:

myosin

The Weijer group was able to implement the suggested myosin distribution in a living embryo, and it developed a circular attractor rather than a linear one.

From Science Daily ● May 28, 2024

The findings also suggest myosin -- a type of motor protein involved in muscle contraction -- plays a role in non-shivering thermogenesis during hibernation, where heat is produced independent of the muscle activity of shivering.

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

This revealed that there were also no changes in the energy consumption rates of myosin.

From Science Daily ● Feb. 20, 2024

One of the chief constituents of muscular fiber is myosin.

From A Practical Physiology by Albert F. Blaisdell

Random Word

Spin the wheel and learn a new word!

---