Microscopic 'clutch' puts flagellum in neutral

A tiny but powerful engine that propels the bacterium Bacillus subtilis through liquids is disengaged from the corkscrew-like flagellum by a protein clutch, Indiana University Bloomington and Harvard University scientists have learned. Their report appears in this week's Science.

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<p><a href="http://www.physorg.com/news133108054.html">Microscopic 'clutch' puts flagellum in neutral</a></p> <p>A tiny but powerful engine that propels the bacterium <I>Bacillus subtilis</I> through liquids is disengaged from the corkscrew-like flagellum by a protein clutch, Indiana University Bloomington and Harvard University scientists have learned. Their report appears in this week's <I>Science</I>.</p>