troponin

American  

[troh-puh-nin, trop-uh-] / ˈtroʊ pə nɪn, ˈtrɒp ə- /

noun

Biochemistry.

1. a protein of muscle tissue that binds calcium ions and is involved in contraction.

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troponin Scientific  

/ trō′pə-nĭn,trŏp′ə- /

1. One of the proteins that make up the thin filaments of muscle tissue and that regulate muscle contraction and relaxation. Troponin occurs in three forms bound together in a complex. One of the three forms is a receptor of calcium ions that induces structural changes that allow the actin in the thin filaments to interact with myosin, causing contraction.

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Etymology

Origin of troponin

1965–70; tropo(myosin) ( tropo-, myosin ) + -n- (of uncertain origin) + -in ²

Example Sentences

Most affected individuals show elevated levels of cardiac troponin in their blood, a widely used marker of heart muscle injury.

From Science Daily

To determine whether these cytokines directly harm the heart, the team vaccinated young male mice and observed increased cardiac troponin levels, indicating heart muscle injury.

From Science Daily

"My troponin levels, which is a heart attack marker, were extremely high."

From BBC

Eckle has used light therapy with patients after surgery and seen positive results including lower levels of troponin, a key protein whose elevation can signal a heart attack or stroke.

From Science Daily

The thin filament consists of F-actin, troponin, tropomyosin, and nebulin.

From Science Daily