TABLE 2.

ΔpH, ΔΨ, and PMF determined for H. pylori at different pH_out values in the presence and absence of urea^a

pHout	In the presence of urea			In the absence of urea
	ΔpH (mV)	ΔΨ (mV)	PMF (mV)	ΔpH (mV)	ΔΨ (mV)	PMF (mV)
1.2	−228	−26	−254
2.4	−154	−53	−207
3.3	−117	−64	−181
4.8	−49	−47	−96
5.8	−6	−56	−62
6.3	0	−108	−108
7.2	0	−143	−143
1				0	0	0
2.1				0	0	0
3				0	0	0
4				−86	0	−86
5				−55	0	−55
6.1				−31	−102	−133
7.1				0	−132	−132

^aCorrected ΔpH and ΔΨ values at average pH_out values measured after incubation of the cells were obtained from Fig. 1B and 3B, respectively.