tropomyosin

noun

tropo·my·o·sin ˌträ-pə-ˈmī-ə-sən

ˌtrō-

: a protein of muscle that forms a complex with troponin regulating the interaction of actin and myosin in muscular contraction

Example Sentences

Recent Examples on the Web In February, for example, Hyman and co-authors reported in The New England Journal of Medicine that a drug aimed at genes known as tropomyosin receptor kinase (TRK) fusions works for many tumor types. —

Jocelyn Kaiser, Science | AAAS, 24 Apr. 2018

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'tropomyosin.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

tropo- + myosin

Note: Name introduced by the British biochemist Kenneth Bailey (1909-63) in "Tropomyosin: a new asymmetric protein component of muscle," Nature, vol. 157, issue 3986 (March 23, 1946), pp. 368-69.

First Known Use

1946, in the meaning defined above

Time Traveler

The first known use of tropomyosin was in 1946

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