Table D.8.

Values from Smith and Crampin (2004) with the exception of [MgATP], [MgADP] and [Pi]

Parameter values for Na+ - K+ - ATPase
Rate constants
$k_1^{+}$	1050 s−1	$k_1^{-}$	172.1 s−1 mM−1
$k_2^{+}$	481 s−1	$k_2^{-}$	40 s−1
$k_3^{+}$	2000 s−1	$k_3^{-}$	79300 s−1 mM−2
$k_4^{+}$	320 s−1	$k_4^{-}$	40 s−1
Dissociation constants
$K_{\mathrm{d},{\text{Na}}_e}^0$	15.5 mM	$K_{\mathrm{d},{\text{Na}}_i}^0$	2.49 mM
Kd,Ke	0.213 mM	Kd,Ki	0.5 mM
Kd,MgATP	2.51 mM
Other parameters
[MgATP]	4.99 mM	[MgADP]	0.06 mM
[Pi]	4.95 mM	[H+]	1000 × 10−pH mM
pH	7.09	Δ	−0.031