Phosphorylation Methylation Bindingintermediate gand 午T SLOW-T2 4 fast 3p·FLT4 Y B Figure 2 of Spiro, P. A, J. S. Parkinson, and H. G. Othmer A model of excitation and adaptation in bacterial chemotaxis Proc Nat/ Acad SciUSA94, no 14 ( Jul 8, 1997): 7263-8 Copyright (1997) National Academy of Sciences, U.S.Afast slow intermediate Copyright (1997) National Academy of Sciences, U. S. A. Figure 2 of Spiro, P. A., J. S. Parkinson, and H. G. Othmer. Proc Natl Acad Sci U S A 94, no. 14 (Jul 8, 1997): 7263-8. "A model of excitation and adaptation in bacterial chemotaxis