Definition of Troponin

1. Noun. (protein medicine) 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. ¹



¹ Source: wiktionary.com

Definition of Troponin

1. a protein of muscle [n -S]

Medical Definition of Troponin

1. Complex of three proteins, Troponins C, I, & 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 calcium ions reversibly, has a variable number of EF hand motifs and is the least variable of the subunits. TnC binds TnI & TnT, but not actin. Troponin I (23 kD) binds to actin and at 1:1 stoichiometry can inhibit the actin myosin interaction on its own. Troponin T (37 kD) binds strongly to tropomyosin. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

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Lexicographical Neighbors of Troponin

tropologies
tropologize
tropologized
tropologizes
tropologizing
tropology
tropolone
tropolones
tropometer
tropomodulin
tropomyosin
tropomyosin kinase
tropomyosins
tropone
tropones
troponin (current term)
troponin I
troponin c
troponin phosphatase
troponins
troponomy
troponym
troponyms
troponymy
tropopause
tropopauses
tropophobia
tropophyte
tropophytes
troposmia

Literary usage of Troponin

Below you will find example usage of this term as found in modern and/or classical literature:

1. Unstable Angina: Diagnosis and Management by Eugene Braunwald (1997)
"Another group of tests concentrates on measuring serum levels of myocardial structural proteins, particularly troponin T, troponin I, myoglobin, ..."

2. Hearts and Arteries: What Scientists Are Learning About Age and the by Caroline McNeil (1996)
"Contractile Proteins The other mechanisms that change with age involve the contractile proteins — actin, myo- sin, troponin, and others — that interact to ..."

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