Table 1:

Number of deeply bound ions in polyA DNA simulations. In the order SPC/E+J/C, TIP3P+J/C, OPC+J/C, OPC+L/M HFE, the number of deeply bound ions drops down significantly, regardless of the ion type. The error is the standard error of the mean (see Methods).

Bulk salt concentration (M)	0.15		0.5
Ion type	Na+	K+	Na+	K+
SPC/E+J/C	5.7 ± 0.2	7.1 ± 0.1	5.8 ± 0.1	6.8 ± 0.1
TIP3P+J/C	4.1 ± 0.1	4.7 ± 0.1	4.8 ± 0.1	4.9 ± 0.1
OPC+J/C	3.3 ± 0.1	4.7 ± 0.1	4.2 ± 0.2	4.3 ± 0.1
OPC+L/M HFE	3.0 ± 0.1	4.0 ± 0.1	3.9 ± 0.2	4.6 ± 0.1