Diagram of the chemotactic pathway in E. coli.

Diagram of the chemotactic pathway in E. coli. (Figure by MIT OCW. After figure 4 in Falke, J. J., R. B. Bass, S. L. Butler, S. A. Chervitz, and M. A. Danielson. “The Two-component Signaling Pathway of Bacterial Chemotaxis: A Molecular View of Signal Transduction by Receptors, Kinases, and Adaptation Enzymes.” In Annu Rev Cell Dev Biol. 13 (1997): 457-512.)