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. 2013 Apr 26;6(5):604–622. doi: 10.3390/ph6050604

Table 1.

Estimated binding free energies by several models and the experimental value (ΔGexptl).

PDB ID ΔGexptl ΔGDIAV ΔGDIAS ΔGDIAV_L ΔGDIAV_W ΔGDIAV_LW ΔGDIAV_LC
Equation (1) Equation (3) Equation (10) Equation (11) Equation (12) Equation (9,12)
1abf −7.39 −6.44 −7.46 −7.33 −6.35 −7.16 −7.68
1apu −10.50 −9.70 −10.70 −9.00 −9.70 −9.30 −10.45
1dbb −12.27 −11.89 −11.25 −12.08 −11.67 −13.09 −12.80
1dbj −10.47 −11.28 −10.39 −11.35 −11.07 −9.24 −9.19
1dog −5.48 −6.45 −8.58 −8.00 −6.38 −8.28 −8.64
1dwb −3.98 −5.04 −5.16 −5.24 −4.92 −5.57 −5.65
1epo −10.85 −12.49 −12.35 −13.13 −12.53 −10.79 −10.85
1etr −10.09 −10.95 −9.86 −9.90 −10.87 −10.38 −10.23
1ets −11.62 −10.75 −10.21 −10.48 −10.62 −10.43 −9.51
1ett −8.44 −12.04 −10.87 −10.42 −11.76 −8.44 −10.53
1hpv −12.57 −13.29 −13.32 −12.78 −13.33 −12.22 −13.15
1hsl −9.96 −6.79 −7.86 −7.26 −6.74 −5.43 −7.74
1htf −11.04 −12.10 −10.45 −11.48 −12.13 −11.19 −11.97
1hvr −12.97 −15.58 −14.97 −15.33 −15.63 −14.42 −15.18
1nsd −7.23 −8.76 −9.21 −9.19 −8.65 −10.07 −9.92
1pgp −7.77 −9.81 −9.10 −8.99 −9.56 −6.98 −8.00
1phg −11.81 −9.63 −9.57 −10.59 −9.53 −9.58 −11.04
1ppc −8.80 −9.09 −8.55 −9.44 −9.10 −8.40 −9.56
1pph −8.49 −7.83 −7.46 −8.13 −7.81 −7.63 −8.51
1rbp −9.17 −9.10 −9.62 −9.74 −9.11 −9.04 −9.76
1tng −4.00 −5.03 −5.39 −5.48 −4.98 −4.82 −2.64
1tnh −4.59 −4.89 −5.53 −5.26 −4.83 −4.78 −5.52
1ulb −7.23 −6.18 −5.90 −6.06 −5.99 −6.10 −6.25
2cgr −9.92 −12.21 −11.20 −11.16 −11.99 −11.19 −8.41
2gbp −10.36 −7.55 −9.23 −8.63 −7.45 −10.09 −9.37
2ifb −7.41 −8.13 −7.89 −7.08 −8.15 −8.63 −7.48
2phh −6.38 −7.04 −7.57 −7.31 −6.83 −8.47 −7.95
2r04 −8.48 −10.72 −10.58 −10.29 −10.71 −12.11 −10.48
2tsc −11.62 −8.63 −9.97 −8.90 −8.75 −9.76 −8.09
2ypi −6.58 −5.87 −6.53 −6.20 −5.76 −7.16 −6.64
3ptb −6.46 −4.17 −4.75 −4.75 −4.12 −5.59 −5.11
4dfr −13.23 −8.35 −7.96 −8.16 −8.36 −9.25 −8.14
5abp −9.05 −6.86 −8.12 −7.46 −6.77 −8.87 −8.21
Average Error 1.58 1.36 1.39 1.48 1.26 1.31
SD a 1.88 1.66 1.68 1.86 1.70 1.72
Correlation coefficient 0.59 0.75 0.76 0.76 0.75 0.75
Average Error (MLR) b 1.42 1.23 1.23 1.32 1.13 1.17

a: standard deviation of the difference between calculated and measured binding free energy. b: We also applied the multiple linear regression (MLR) to the 34 protein-ligand complex data. “Average Error (MLR)” is the averaged error obtained by the MLR. The error of the MLR is always smaller than the error obtained by the cross−validation test.