Fig. 5
From: Chemotaxis of Escherichia coli to major hormones and polyamines present in human gut
Dose-response curves of the pathway response to spermidine. Responses were measured by FRET as in Fig. 1 for a ∆trg cells (red crosses) and ∆tap cells (black crosses) and b ∆potD (open triangles), ∆potA (open diamonds), and ∆potD/potD+ (filled inverted triangles) cells (see Figure S6). Differences between Δtrg and Δtap responses in a and between ΔpotD and ΔpotA or ∆potD/potD+ responses b are significant according to student t-test performed with responses to 10 mM spermidine (P ≤ 0.01)
