Now, a recent paper 1 has filled in key details, presenting a landmark structure — the crystal structure of the smooth muscle myosin motor-domain with the essential light chain crystallized with ...

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 ...

which inhibits the phosphorylation of myosin and lowers intracellular ionic calcium concentrations, resulting in relaxation. Albuterol relaxes the smooth muscles of all airways, from the trachea ...