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The effect of McpK on α-ketoglutarate chemotaxis. Quantitative capillary chemotaxis assays of P. aeruginosa PAO1, P. aeruginosa ΔmcpK and the complemented mutant P. aeruginosaΔmcpK (pBBR1MCS-2-McpK) toward different αKG concentrations. Data were corrected with the number of cells that swam into buffer-containing capillaries (833 ± 106). Shown are means and standard errors from three independent experiments, each conducted in triplicate.
