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troponin

Pronunciation: tro'po-nin

Definition: A globular protein of muscle that binds to tropomyosin and has considerable affinity for calcium ions; a central regulatory protein of muscle contraction. Troponin T binds to tropomyosin; troponin I inhibits F-actin-myosin interactions; troponin C is a calcium-binding protein and has a key role in muscle contraction.

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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