Actin filaments are assembled in two general types of structures: bundles and networks. Bundles can be composed of polar filament arrays, in which all barbed ends point to the same end of the bundle, or non-polar … Meer weergeven

Measuring approximately 6 nm in diameter, microfilaments are the thinnest fibers of the cytoskeleton. They are polymers Meer weergeven

Intracellular actin cytoskeletal assembly and disassembly are tightly regulated by cell signaling mechanisms. Many signal transduction systems … Meer weergeven

Myosin motors are intracellular ATP-dependent enzymes that bind to and move along actin filaments. Various classes of myosin motors have very different behaviors, … Meer weergeven

As a result of ATP hydrolysis, filaments elongate approximately 10 times faster at their barbed ends than their pointed ends. At Meer weergeven

In non-muscle cells, actin filaments are formed proximal to membrane surfaces. Their formation and turnover are regulated by many … Meer weergeven

One proposed model suggests the existence of actin filament barbed-end-tracking molecular motors termed "actoclampin". … Meer weergeven