It was first discovered in skeletal muscle, where actin filaments slide along filaments of another protein called myosin to make the cells contract. (In nonmuscle cells, actin filaments are less ...

An individual sarcomere contains many parallel actin (thin) and myosin (thick) filaments. The interaction of myosin and actin proteins is at the core of our current understanding of sarcomere ...

as actin building blocks are either added to or removed from the ends of filaments. According to the classical model, the generation of cell movement also requires the molecular motor myosin.

Thin, flexible protein strands called actin filaments act like bones for our cells and are critical for its movement. Supercomputer simulations have helped solve a decades-old mystery of how actin ...

Gamma-actin therefore confers increased rigidity to the apical membrane, forming a network of filaments that is stronger ... β-actin and nonmuscle myosin-2 A controls tight junction and apical ...