Myosin is a superfamily of motor proteins that are responsible for actin-based motility in eukaryotes
. Myosin is the prototype of a molecular motor, which converts chemical energy in the form of ATP to mechanical energy, generating force and movement
. Myosin is best known for its role in muscle contraction, but it also plays a role in a wide range of other motility processes in eukaryotes
. There are several types of myosin, including Myosin I, Myosin II, Myosin III, Myosin IV, Myosin V, Myosin VIII, and Myosin IX
. Each myosin head is composed of a motor domain that contains the actin and ATP-binding region, and an elongated tail that varies in length and composition depending on the type of myosin
