Cardiac Troponins are a contractile proteins that normally is not found in serum

Cardiac Troponins
Cardiac Troponins are a contractile proteins that normally is not found in serum. They are released only when myocardial necrosis occurs.

Cardiac troponins (cTn) are different from skeletal muscle tropnins So, more specific for heart disease diagnosis (100 % cardiac specific).

They consist of 3 subunits: cTn T, cTnI & cTn C
with different structures & functions.