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troponin

noun
tro·​po·​nin | \ ˈtrō-pə-nən How to pronounce troponin (audio) , ˈträ-, -ˌnin\

Definition of troponin

: a protein of muscle that together with tropomyosin forms a regulatory protein complex controlling the interaction of actin and myosin and that when combined with calcium ions permits muscular contraction

Examples of troponin in a Sentence

Recent Examples on the Web

 The study found there is an increase in troponins, a protein found in blood that can often signal heart injury, in participants who spent 10 hours or more a day sitting. — Elizabeth Varnell, Vogue, "Here’s Why Sitting at a Desk All Day Is Harmful to Your Heart," 6 Jan. 2018 A blood test revealed my levels of a protein called troponin were off…something was wrong, but the doctors couldn't diagnose it. — Michelle Konstantinovsky, Marie Claire, "On Having a Baby and a Heart Attack: Why You Might Be at Risk for This Life-Threatening Disease," 2 Mar. 2017

First Known Use of troponin

1966, in the meaning defined above

History and Etymology for troponin

by shortening & alteration from tropomyosin

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More Definitions for troponin

troponin

noun
tro·​po·​nin | \ ˈtrōp-ə-nən How to pronounce troponin (audio) , ˈträp- How to pronounce troponin (audio) , -ˌnin\

Medical Definition of troponin

: a protein of muscle that together with tropomyosin forms a regulatory protein complex controlling the interaction of actin and myosin and that when combined with calcium ions permits muscular contraction

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