Medical Dictionary

troponin

noun tro·po·nin \ˈtrōp-ə-nən, ˈträp-, -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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June 30, 2015
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