What regulatory proteins can be found in the thin filaments of skeletal muscle fibers?

Question

Quizplus · Accepted Answer

The regulatory proteins found in the thin filaments of skeletal muscle fibers are tropomyosin and troponin. Tropomyosin forms a long, thin coil that lies in the groove of the actin filament, while troponin is a complex of three subunits that are associated with tropomyosin. Together, tropomyosin and troponin work to regulate the binding of myosin to actin during muscle contraction. The other options listed (A, C, D, and E) are incorrect because they do not accurately reflect the proteins found in the thin filaments of skeletal muscle fibers.

What Regulatory Proteins Can Be Found in the Thin Filaments