TABLE 1.

Parameters from fits of a Boltzmann function to (1 − ΔF/F)/V distributions of N-terminally deleted H,K-ATPase β-mutants (Fig. 2C)

The values are the means ± S.E. of 15–30 oocytes from two or three different oocyte batches.

	Boltzmann parameter (1 − ΔF/F)/V curves
	V0.5	zq
	mV
HKαS806C/βWT	−110.1 ± 5.0	0.33 ± 0.01
HKαS806C/βΔ4	−115.3 ± 5.8	0.31 ± 0.01
HKαS806C/βΔ8	−108.7 ± 4.3	0.32 ± 0.02
HKαS806C/βΔ13	−56.3 ± 6.3	0.34 ± 0.02
HKαS806C/βΔ29	−89.9 ± 4.3	0.32 ± 0.01