Figure 2

Exchange kinetics of adaptation enzymes. (a) Recovery kinetics of CheR-YFP in strain VS102 (CheR⁺ CheB⁺) with receptors in low methylated state (filled circles, solid black line; data taken from [37]) and in strain LL5 that lacks chromosomal CheR and CheB (white squares, dashed black line), and recovery kinetics of YFP-CheR^D154A (gray diamonds, gray line) in strain LL5. (b) Recovery kinetics of CheB-YFP in strain VS102 (filled circles, solid black line, data taken from [37]), and of CheB^S164C-YFP (gray diamonds, gray line) and CheB^D56E-YFP (white squares, dashed black line) in LL5. Curves represent means of 13 to 30 experiments, with error bars indicating standard errors.