Chemotaxis in Escherichia coli proceeds efficiently from different initial tumble frequencies.

Abstract excerpt

The relationships between the level of tumbling, tumble frequency, and chemotactic ability were tested by constructing two Escherichia coli strains with the same signaling apparatus but with different adapted levels of tumbling, above and below the level of wild-type E. coli. This was achieved by introducing two different aspartate receptor genes into E. coli: a wild-type (wt-tars) and a mutant (m-tars)...

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