Contractile proteins are a group of proteins found in muscle cells that are essential for the contraction and movement of muscles. These proteins, such as actin and myosin, work together to generate the force needed for muscle fibers to contract and produce movement. Contractile proteins play a crucial role in various physiological processes, including muscle contraction, heart function, and cell movement. Understanding the function and regulation of contractile proteins is essential for developing treatments for muscle-related disorders and improving our overall understanding of muscle physiology.