This protein has a magnesium ion and an ATP molecule bound to it in its globular form, which is converted to its fibrous form, and this protein composes structures in which calcium binds to troponin so that cross bridges can form, the thin myofilaments.
The functions of this protein are inhibited by toxins such as cytochalasins and phalloidin. The proteins fimbrin and villin bind to this protein in filopodia and microvilli, and this protein forms structures with a pointed end and a barbed end. This protein has a magnesium ion and an ATP molecule bound to it in its globular form, which is converted to its fibrous form, and this protein composes structures in which calcium binds to troponin so that cross bridges can form, the thin myofilaments. For 10 points, name this protein which is paired with myosin in the sarcomeres of muscle tissue.
The functions of this protein are inhibited by toxins such as cytochalasins and phalloidin.
Actin