Troponin T | |
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![]() Troponin | |
Test of | Troponin |
Troponin T (shortened TnT[1] or TropT) is a part of the troponin complex, which are proteins integral to the contraction of skeletal and heart muscles. They are expressed in skeletal and cardiac myocytes. Troponin T binds to tropomyosin and helps position it on actin,[2] and together with the rest of the troponin complex, modulates contraction of striated muscle.[3] The cardiac subtype of troponin T is especially useful in the laboratory diagnosis of heart attack because it is released into the blood-stream when damage to heart muscle occurs.[4] It was discovered by the German physician Hugo A. Katus at the University of Heidelberg, who also developed the troponin T assay.