Thread: Life's Smallest Motor, Cargo Carrier of the Cells, Moves Like a Seesaw
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Old 02-19-2010, 06:41 PM
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Default Life's Smallest Motor, Cargo Carrier of the Cells, Moves Like a Seesaw
Life's Smallest Motor, Cargo Carrier of the Cells, Moves Like a Seesaw

http://www.sciencedaily.com/releases...0218091238.htm

ScienceDaily (Feb. 19, 2010) — Life's smallest motor -- a protein that shuttles cargo within cells and helps cells divide -- does so by rocking up and down like a seesaw, according to research conducted by scientists at the U.S. Department of Energy's Lawrence Berkeley National Laboratory and Brandeis University.

The researchers created high-resolution snapshots of a protein motor, called kinesin, as it walked along a microtubule, which are tube-shaped structures that form a cell's "skeleton." The result is the closest look yet at the structural changes kinesin proteins undergo as they ferry molecules within cells.
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I long to accomplish a great and noble tasks, but it is my chief duty to accomplish humble tasks as though they were great and noble. The world is moved along, not only by the mighty shoves of its heroes, but also by the aggregate of the tiny pushes of each honest worker. ~~Helen Keller
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