Table I.

Resting membrane potentials and reversal potentials of GmN70 oocytes in the presence of gluconate or nitrate

Oocytea	Resting Membrane Potential			Reversal Potentialsc
	Gluconateb	Nitrate	Chloride	Gluconate	Nitrate	Chloride
Uninjected	−33.8 mV (2.9; n = 11)d	−33.5 mV (1.5; n = 11)	−26.5 mV (3.4; n = 21)	−32.1 mV (5.0; n = 8)	−31.6 mV (2.8; n = 8)	−26.7 mV (3.4; n = 8)
GmN70 injected	−3.8 mV (1.2; n = 26)	−27.8 mV (1.0; n = 26)	−16.0 mV (0.6; n = 28)	−5.1 mV (1.3; n = 22)	−27.3 mV (1.1; n = 22)	−13.2 mV (2.6; n = 10)

^aOocytes were injected with 45 ng of the indicated cRNA and were cultured for 3 to 4 d in Frog Ringer's solution as described in “Materials and Methods.”

^bBath solutions consisted of 10 mm HEPES-NaOH, pH 7.6, 6 mm CaCl₂, 2 mm MgCl₂, and 100 mm of the sodium salt of the indicated anion.

^cReversal potentials were calculated from I-V plots of recordings similar to those in Figure 4A.

^dNumbers in parentheses represent SEM.