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Appl Environ Microbiol. 2007 Dec;73(23):7793-5. Epub 2007 Oct 12.

Identification of a malate chemoreceptor in Pseudomonas aeruginosa by screening for chemotaxis defects in an energy taxis-deficient mutant.

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  • 1Department of Microbiology, Box 357242, 1705 N.E. Pacific Street, University of Washington, Seattle, WA 98195-7242, USA.


We found that a robust energy taxis response mediated by the Aer receptor can sometimes mask chemotaxis mediated by other methyl-accepting chemotaxis proteins (MCPs) in Pseudomonas aeruginosa. We identified PA2652 as a chemoreceptor for malate by screening aer mcp double mutants by using swarm plate assays.

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