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. Author manuscript; available in PMC: 2016 Sep 23.
Published in final edited form as: J Am Chem Soc. 2015 Sep 10;137(37):12024–12034. doi: 10.1021/jacs.5b05916

Table 1.

Averaged atomic charges of the QM subsystem polarized by the different environments computed at M06-2X/MM level. Dipole moments of the chemical system under the effect of the environment, μ, and gas phase dipole moments, μ0, computed with the geometries obtained in solution and in the ribosome.

Charges
(a.u.)
Aqueous solution Ribosome Ribosome+Mg2+
RC ZW TS RC ZW TS RC ZW TS
H1 0.352 ± 0.025 0.347 ± 0.036 0.515 ± 0.039 0.380 ± 0.020 0.461 ± 0.033 0.600 ± 0.040 0.418 ± 0.019 0.480 ± 0.026 0.578 ± 0.032
N1 −0.869 ± 0.041 −0.447 ± 0.109 −0.583 ± 0.089 −0.892 ± 0.024 −0.860 ± 0.095 −1.095 ± 0.079 −0.956 ± 0.026 −0.833 ± 0.077 −0.958 ± 0.064
C1 0.665 ± 0.043 0.936 ± 0.083 0.753 ± 0.056 0.659 ± 0.032 1.010 ± 0.051 1.106 ± 0.045 0.601 ± 0.040 0.747 ± 0.063 0.789 ± 0.049
O3' −0.470 ± 0.039 −0.555 ± 0.051 −0.715 ± 0.048 −0.247 ± 0.017 −0.356 ± 0.022 −0.425 ± 0.029 −0.283 ± 0.026 −0.352 ± 0.031 −0.453 ± 0.028
Hw 0.378 ± 0.029 0.295 ± 0.036 0.402 ± 0.051 0.309 ± 0.018 0.302 ± 0.014 0.349 ± 0.024 0.342 ± 0.015 0.275 ± 0.024 0.372 ± 0.033
Ow −0.940 ± 0.025 −0.944 ± 0.036 −1.214 ± 0.043 −0.879 ± 0.015 −0.915 ± 0.014 −1.095 ± 0.019 −0.893 ± 0.017 −0.877 ± 0.020 −1.109 ± 0.020
H2' 0.430 ± 0.023 0.497 ± 0.027 0.524 ± 0.038 0.466 ± 0.011 0.448 ± 0.011 0.471 ± 0.013 0.494 ± 0.017 0.452 ± 0.012 0.470 ± 0.013
O2' −0.745 ± 0.041 −0.792 ± 0.035 −0.876 ± 0.054 −0.761 ± 0.022 −0.813 ± 0.055 −0.872 ± 0.073 −0.851 ± 0.072 −0.794 ± 0.046 −0.821 ± 0.073
O1 −0.598 ± 0.050 −0.863 ± 0.065 −0.549 ± 0.044 −0.565 ± 0.023 −0.718 ± 0.021 −0.646 ± 0.026 −0.509 ± 0.022 −0.705 ± 0.035 −0.521 ± 0.022
Dipole moments (Debyes)
μ 7.79 7.06 11.79 7.12 4.58 5.96 3.58 5.55 8.96
μ0 5.47 4.20 8.47 4.18 1.32 3.60 2.05 3.42 6.77