Actomyosin II interaction modulates cell cortex stability

WOLFGANG H. GOLDMANN, HORACIO F. CANTIELLO, BERNARD CHASAN

CELL BIOLOGY INTERNATIONAL

Año: 2005 vol. 29 p. 245 - 248

1065-6995

Myosin II controls the viscoelastic behavior of actin filaments, interacting with actin in an energy-dependent manner. Replacing adenosine triphosphate with adenosine diphosphate changes actomyosin sliding to cross-linking. Rheological measurements show a 3e4-fold increase of the elastic portion G# in actin filaments when myosin II is present at a molar ratio rMAZ1:200. This observation is supported by the demonstration of inactive myosin heads along actin filaments using atomic force microscopy.e4-fold increase of the elastic portion G# in actin filaments when myosin II is present at a molar ratio rMAZ1:200. This observation is supported by the demonstration of inactive myosin heads along actin filaments using atomic force microscopy.