The cell uses ATP to power this contraction. A single myosin ... Intercalated discs connect cardiac muscle cells. Gap junctions inside the intercalated discs relay electrical impulses from one ...

Calcium handling and excitation-contraction (EC) coupling are critical processes in cardiac myocytes, the muscle cells of the ... crucial for forming organized junctions that facilitate ...

Numerous motor and structural proteins compose a highly ordered structure known as the sarcomere, the basic unit of muscle contraction in heart and skeletal muscles. Sarcomeric myosin heavy chain ...