The development of an extremely accurate imaging technique has allowed scientists to look inside the machinery of a cell and see molecules that walk in a similar way to humans.

Paul Sevin, a physics professor at the University of Illinois at Urbana-Champaign, coauthored a study in the journal Science that says the molecule, myosin, walks the same as humans but at a 10 million times smaller scale, measuring a stride of just 74 nanometers.

Myosin is a tiny molecular motor that converts chemical energy into mechanical motion.

More specifically, researchers studied Myosin V, one of a dozen types of myosin that is used as a transporter in the body’s cells and steps along a filament of actin.

Although a tiny molecular motor, Myosin V has the ability to carry more than 1,000 times its own weight.
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