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. Author manuscript; available in PMC: 2017 Jul 16.
Published in final edited form as: J Phys Chem B. 2016 Aug 12;120(34):8837–8844. doi: 10.1021/acs.jpcb.6b05625

Figure 6.

Figure 6

Comparison between our model prediction (solid black line) and the experimental data (black and gray squares connected by dotted lines) for the number of Mg2+ ions bound to a purine riboswitch (PDB ID: 1Y26) as a function of the bulk Mg2+ ion concentration in a solution with 250 μM DAP (2,6-diaminopurine) and 50 mM K+ background at 20°C.51 The black squares show the experimental data reported in Leipply & Draper (2011). The gray squares show the experimental data modified by a (80%) correction factor that might be necessary for the data (D.E. Draper, private communication).