Table 3.

Effect of SO₄ ⁼ and SO₃ ⁼/HSO₃ ⁻ on Kinetic Parameters of rkNBC ^‡

Major extracellular anion	K m(HCO3 −)	Relative v max	α*	n
	mM		mM−1
66 mM gluconate−	6.5 ± 0.7	0.97 ± 0.03	0.00577	58
33 mM SO4 =	7.1 ± 0.5	0.98	0.00577 (fixed)	24
26.4 mM SO3 =/6.6 mM HSO 3 −	7.6 ± 0.6	0.99	0.00577 (fixed)	48

^‡The parameter values for 66 mM gluconate were obtained using and , whereas those for SO₄ ⁼ and SO₃ ⁼/HSO₃ ⁻ were obtained using and .