Table 2. Summary of parameters used to describe the WCA interactions between ions and neutral particles.

See text section ‘Coarse-grained explicit ion model’ for definitions of various parameters.

Coarse-grained pair	${\displaystyle ϵ}$(kcal/mol)	${\displaystyle \sigma }$(Å)
Na+-S*	0.239	4.315
Na+-A†	0.239	3.915
Na+-T‡	0.239	4.765
Na+-G§	0.239	3.665
Na+-C¶	0.239	4.415
Na+-AA**	0.239	4.065
Mg2+-S	0.239	3.806
Mg2+-A	0.239	3.406
Mg2+-T	0.239	4.256
Mg2+-G	0.239	3.156
Mg2+-C	0.239	3.906
Mg2+-AA**	0.239	3.556
Cl−-S	0.239	5.1225
Cl−-A	0.239	4.7225
Cl−-T	0.239	5.5725
Cl−-G	0.239	4.4725
Cl−-C	0.239	5.2225
Cl−-AA**	0.239	4.8725

^*Sugar.

^†Adenine base.

^‡Thymine base.

^§Guanine base.

^¶Cytosine base.

^**Non-charged amino acids.