Table 2.

Average pK_a values, protonation state populations at pH 7.4, and average conductance values

	pKa1	pKa2	%S0	%S1	%S2	Conductance [pS]
Na+	6.9 ± 0.3	6.7 ± 0.4	72	23	5	23.8
K+	7.5 ± 0.2	6.7 ± 0.3	40	50	10	22.8

The pK_a values are averaged over the last 100 ns and eight independent simulations.