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Figure 5
Application of the ESP ratios to two ribosome structures plotted as a function of the sequential order number of Mg2+ or H2O in the coordinate files. (a) Mg2+ in the 5t5h structure. (b) H2O in the 5t5h structure. (c) Mg2+ bound to the 16S rRNA in the 5af1 structure. (d) Mg2+ bound to the 26S rRNA in the 5af1 structure. The upper limits (dashed lines) of Mg2+ (blue), Na+ (cyan) and H2O (orange) are derived from the theoretical plot at Mg-J1 site assuming B = 41.25 Å2. The lower limits (solid lines) are from Mg-J2.

IUCrJ
Volume 5| Part 4| July 2018| Pages 375-381
ISSN: 2052-2525
https://doi.org/10.1107/S2052252518006292