Definition of myosin in English:



  • A fibrous protein that forms (together with actin) the contractile filaments of muscle cells and is also involved in motion in other types of cells.

    ‘Muscle is composed of mainly three types of protein filaments: myosin, actin, and titin.’
    • ‘In a contracting muscle myosin and actin filaments slide past each other as the muscle fiber shortens.’
    • ‘Muscle contraction is dependent on two proteins, actin and myosin.’
    • ‘Rotational motions associated with muscle contraction may occur in myosin, actin, or in both.’
    • ‘Thick myofilaments are composed of several hundred molecules of a fibrous protein known as myosin.’
    • ‘The test correlates the presence of a telltale protein - myosin - to muscle growth.’



/ˈmīəs(ə)n/ /ˈmaɪəs(ə)n/