Cardiac troponin C and cardiac troponin I are linked to actin and tropomyosin by cardiac troponin T, which play an important role in cardiac contractility and relaxation.

• 心肌肌钙蛋白T将肌钙蛋白C和肌钙蛋白I连接到肌动蛋白和原肌球蛋白上，在心肌细胞收缩和舒张过程中发挥重要作用。