troponin
tro·po·nin
noun \ˈtrō-pə-nən, 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
Origin of TROPONIN
by shortening & alteration from tropomyosin
First Known Use: 1966
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