Sodium Motive Force (SMF) change as pH changes from 5 to 7 and external sodium concentration 1 to 85 mM

Range pH 5 & CNa 1mM -53mV: pH 7 & CNa 85mM -187mV mV
Organism Bacteria Escherichia coli
Reference Lo CJ, Leake MC, Pilizota T, Berry RM. Nonequivalence of membrane voltage and ion-gradient as driving forces for the bacterial flagellar motor at low load. Biophys J. 2007 Jul 1 93(1):294-302. p.301 right column 2nd paragraphPubMed ID17416615
Method single-cell Vm and intracellular sodium measurements
Comments "Combining single-cell Vm and intracellular sodium measurements, the SMF of cells can be determined. In the pH range 5.0–7.0 and external sodium concentration 1–85 mM, the SMF varies from 53 to 187 mV." CNa=Sodium concentration
Entered by Uri M
ID 109776