Figure 6

Rates increases produced by serine and CheW. Rate increases, in units of millimole CH₃/mole CheR/sec, were determined by subtracting the rates without ligand from rates with ligand. Rate increases produced by 500 μM serine and 60 μM CheW in separate experiments and then added (striped columns) are shown next to rate increases produced by 500 μM serine and 60 μM CheW added simultaneously (black columns). Values and uncertainties (estimated by error propagation) were calculated from data of Table 1.