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. Author manuscript; available in PMC: 2010 Jul 5.
Published in final edited form as: Biochemistry. 2005 Feb 8;44(5):1550–1560. doi: 10.1021/bi048089z

Figure 3.

Figure 3

Effects of charge neutralization on cellular chemotaxis in vivo. Receptors were expressed in a strain lacking the aspartate receptor, and their ability to restore in vivo chemotaxis in a self-induced gradient of aspartate was assessed (see Materials and Methods). Liquid culture was spotted onto an agar minimal medium plate containing or lacking 0.1 mM aspartate. The diameter of the chemotactic swarm was measured at four to six time points to determine the swarm rate at 30 °C. Each bar represents the aspartate-specific swarm rate for a given receptor normalized relative to the wild-type aspartate-specific rate.