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. 2011 Jul 6;101(1):176–187. doi: 10.1016/j.bpj.2011.05.050

Figure 3.

Figure 3

Electrostatic folding free energy ΔgE = (ΔGE/N) (A–C) and Mg2+ contribution ΔΔgMg2+ to tertiary structure folding free energy (D–F) for BWYV pseudoknot (A and D), 58-nt rRNA fragment (B and E), and yeast tRNAPhe (C and F) for mixed Na+/Mg2+ solutions at room temperature. Solid lines: TBI model; dotted lines: PB theory. Symbols (experimental data): (D) ◊ BWYV pseudoknot in 0.054 M Na+; ♦ BWYV pseudoknot in 0.079 M Na+ (66); (E) ♦ 58-nt rRNA fragment in 1.6 M monovalent ion solution (45,46,56); and (F) ♦ yeast tRNAPhe in 0.032 M Na+ (45,57).