Cell Motility

Mainly due to their small size, cell's operate at low Reynold's number, where inertial effects are negligble.

• E.M. Purcell, Life at Low Reynolds number, Am. J. Phys. 45, 3 (1977). (offline)

Many cells move, using forces generated by polymerization of cytoskeloton filaments (such as actin)

• "Tour on Video Microscopy" from the Institute of Molecular Biology, Austrian Academy of Sciences (offline)
• Steady state of actin involves treadmilling of monomers by polymerization and depolymerization.
• Actin-based motility (from the Theriot Lab) (offline)
  • In vivo- the pathogen Lysteria
    
    Listeria monocytogenes in GFP-actin-transfected MDCK cells generously provided by Angela Barth.

• In vitro- spherical latex beads coated with protein ActA in solution of Actin and ATP

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