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Microscopic 'Clutch' Puts Flagellum in Neutral


June 19, 2008

illustration of flagellum of a bacteria 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 issue of Science. Scientists have long known what drives the flagellum to spin, but what causes the flagellum to stop spinning--temporarily or permanently--was unknown. Full Story

Source
Indiana University

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The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2016, its budget is $7.5 billion. NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and other institutions. Each year, NSF receives more than 48,000 competitive proposals for funding and makes about 12,000 new funding awards. NSF also awards about $626 million in professional and service contracts yearly.

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