Myosin II plays the most important role in cellular force generation. Myosin II molecules self-assemble into filaments with different structures depending on myosin II isoforms and other conditions ...

Muscle contraction occurs when these myofilaments ... smooth muscle cells shorten via the movement of actin and myosin myofilaments. Examples of involuntary smooth muscles include: The one ...

Muscle contraction occurs when these myofilaments move closer ... smooth muscle cells shorten via the movement of actin and myosin myofilaments. The one exception of an involuntary muscle is the ...

The basic physiological principles of muscle contraction are well established: when muscle cells are excited, myosin heads in the sarcomere thick filaments bind to actin thin filaments and undergo a ...

Muscle contraction strength is directly related to the quality of sarcomere contractility. The release of calcium into the sarcoplasm facilitates the movement of actin and myosin filaments within the ...

and correspondingly the activity of RhoA and subsequent changes in stress fibers formation and contraction. Furthermore, the phosphorylation of CAV-1 on site Tyr14 plays an essential role in ...

Our biceps and our brain cells may have more in common than previously thought. New research led by the Lippincott-Schwartz ...