Information about Treadmilling
In reference to biological molecules, particularly microtubules and microfilaments, treadmilling refers to the constant removal of the protein subunits from these filaments at one end while protein subunits are constantly added at the other end.
Microtubules are one of the components of the cytoskeleton. They have diameter of ~ 24 nm and length varying from several micrometers to possibly millimeters in axons of nerve cells.
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Microfilaments are the thinnest filaments of the cytoskeleton found in the cytoplasm of all eukaryotic cells. These linear polymers of actin subunits are flexible and relatively strong, resisting buckling by multi-piconewton compressive forces and filament fracture by nanonewton
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