Fluctuation-response relationships. (A) Variance of CheY-P fluctuations (normalised by the squared adapted CheY-P value) as a function of adapted CheY-P value for varying adaptation rates γR (solid line) and γB (dashed line) and total CheY concentration (dotted line). The filled circle marks the point, where parameters for the three parameter variations coincide. (B) Adaptation time, calculated as (λ1∂A/∂M)-1, plotted against the variance of CheY-P fluctuations. Adapted CheY-P concentration of 5μM is indicated by the open circles. Legend is the same as in (A). Our parameters are given in Additional File 1. (Inset) Variance of CheY-P concentrations plotted against the adaptation time as extracted from measurements of motor rotation by Park et al. . The line is a linear fit through the data.
Clausznitzer and Endres BMC Systems Biology 2011 5:151 doi:10.1186/1752-0509-5-151