noun Etymology: by shortening & alteration from tropomyosin Date: 1966 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

New Collegiate Dictionary. 2001.

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  • Troponin — is a complex of three regulatory proteins that is integral to muscle contraction in skeletal and cardiac muscle, but not smooth muscle. Troponin is attached to the protein tropomyosin and lies within the groove between actin filaments in muscle… …   Wikipedia

  • Troponin — Troponin, globuläres Protein in den Actinfilamenten der ⇒ Myofilamente, das den miteinander verschlungenen Ketten aus F Actin jeweils im Abstand von 7 Actinmonomeren aufgelagert ist und das die ⇒ Tropomyosin Doppelhelix, die schraubig die… …   Deutsch wörterbuch der biologie

  • Troponin — Übergeordnet Mikrofilament Untergeordnet Kardiales Troponin Rotes skelettales Troponin Weißes ske …   Deutsch Wikipedia

  • troponin — Complex of three proteins, troponins C, I, and T, associated with tropomyosin and actin on the thin filament of striated muscle, upon which it confers calcium sensitivity. There is one troponin complex per tropomyosin. Troponin C (18 kD) binds… …   Dictionary of molecular biology

  • troponin — noun A complex of three regulatory proteins that is integral to muscle contraction in skeletal and cardiac muscle, or any member of this complex. The level of troponin in the blood is often used as an indicator of heart damage …   Wiktionary

  • troponin — troponinas statusas T sritis chemija apibrėžtis Raumenų baltymas. atitikmenys: angl. troponin rus. тропонин …   Chemijos terminų aiškinamasis žodynas

  • troponin — /troh peuh nin, trop euh /, n. Biochem. a protein of muscle tissue that binds calcium ions and is involved in contraction. [1965 70; tropo(myosin) (see TROPO , MYOSIN) + n (of uncert. orig.) + IN2] * * * …   Universalium

  • troponin — A globular protein of muscle that binds to tropomyosin and has considerable affinity for calcium ions; a central regulatory protein of muscle contraction. T. T binds to tropomyosin; t. I inhibits F actin myosin interactions; t. C is a calcium… …   Medical dictionary

  • Troponin — Tro|po|nin [↑ Tropo u. ↑ in (3)], das; s, e: aus drei Untereinheiten bestehendes Protein (MG 80 000), das zusammen mit Actin, Myosin u. Tropomyosin für die Muskelbewegung verantwortlich ist …   Universal-Lexikon

  • Troponin — Tro|po|nin das; s <zu ↑> eines der vier wesentlichen Proteine der Muskelzelle (Biochem.) …   Das große Fremdwörterbuch

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