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

Examples of tropomyosin in a Sentence

Recent Examples on the Web

People are often allergic to the protein tropomyosin in shellfish. —Sherri Gordon, Health, 7 Sep. 2024

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

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

Medical Definition

tropomyosin

noun

tro·​po·​my·​o·​sin ˌträp-ə-ˈmī-ə-sən  ˌtrōp- 

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