Cardiac Troponin (Cats)

Cardiac troponin I (cTnI) is presently recognized as one of the most valuable biochemical markers of myocardial damage.

The cardiac troponins are contractile proteins located within each individual myofibril and existing as different isotypes that vary between cardiac and skeletal muscles. These key proteins are an integrated part of the sarcomeric unit, which includes actin, myosin, tropomyosin and troponin I, T and C. The troponin-complex includes proteins involved in the process of myofibril contraction and relaxation, and display quite simple tissue isotype distribution.