Chem. J. Chinese Universities ›› 2017, Vol. 38 ›› Issue (11): 2061.doi: 10.7503/cjcu20170237
• Physical Chemistry • Previous Articles Next Articles
TANG Guanghui1, ZHANG Ya1, ZHANG Yuping1, ZHOU Pengpeng1, LIN Zhihua1, WANG Yuanqiang1,2,*()
Received:
2017-04-17
Online:
2017-11-10
Published:
2017-10-30
Contact:
WANG Yuanqiang
E-mail:wangyqnn@cqut.edu.cn
Supported by:
CLC Number:
TrendMD:
TANG Guanghui, ZHANG Ya, ZHANG Yuping, ZHOU Pengpeng, LIN Zhihua, WANG Yuanqiang. Molecular Docking, QSAR and Molecular Dynamics Simulation on Phosphorus Containing Pyrimidines as CDK9 Inhibitors†[J]. Chem. J. Chinese Universities, 2017, 38(11): 2061.
Method | Parameter | ||||||
---|---|---|---|---|---|---|---|
n | Q2 | R2 | SEE | F | r2 | SDEP | |
CoMFA | 4 | 0.162 | 0.876 | 0.196 | 81.257 | 0.376 | 0.357 |
CoMSIA-EH | 7 | 0.564 | 0.950 | 0.129 | 115.848 | 0.765 | 0.211 |
CoMSIA-SEH | 7 | 0.557 | 0.959 | 0.116 | 145.518 | 0.863 | 0.097 |
T-CoMFA | 11 | 0.719 | 0.964 | 0.629 | 0.344 |
Table 1 Summary of 3D-QSAR results*
Method | Parameter | ||||||
---|---|---|---|---|---|---|---|
n | Q2 | R2 | SEE | F | r2 | SDEP | |
CoMFA | 4 | 0.162 | 0.876 | 0.196 | 81.257 | 0.376 | 0.357 |
CoMSIA-EH | 7 | 0.564 | 0.950 | 0.129 | 115.848 | 0.765 | 0.211 |
CoMSIA-SEH | 7 | 0.557 | 0.959 | 0.116 | 145.518 | 0.863 | 0.097 |
T-CoMFA | 11 | 0.719 | 0.964 | 0.629 | 0.344 |
Compound | R5 | R6 | R7 | Z1 | Z2 | Calculated pIC50 | ||
---|---|---|---|---|---|---|---|---|
CoMSIA-EH | CoMSIA-SEH | T-CoMFA | ||||||
64 | H | H | H | H | H | 3.830 | 3.873 | 3.880 |
64a | H | Et | H | OCH3 | H | 3.485 | 3.457 | 3.770 |
64b | H | H | H | H | Et | 3.378 | 3.349 | 3.880 |
64c | H | H | H | BnO | H | 3.680 | 3.568 | 3.820 |
64d | H | H | SOOH | H | H | 3.916 | 3.947 | 3.920 |
64e | H | H | SOOCH3 | H | H | 3.952 | 3.962 | 3.882 |
64f | H | Et | SOOH | H | H | 3.830 | 3.782 | 3.878 |
64g | H | Et | SO3CH3 | H | H | 3.988 | 4.012 | 3.860 |
64h | H | Et | SOOCH3 | H | H | 3.980 | 3.989 | 3.830 |
64i | F | Et | SO3CH3 | H | H | 3.826 | 3.875 | 3.650 |
64j | H | H | 4-piperidyl | H | H | 3.825 | 3.869 | 3.890 |
Table 2 Predicted and in vitro activities of new designed compounds*
Compound | R5 | R6 | R7 | Z1 | Z2 | Calculated pIC50 | ||
---|---|---|---|---|---|---|---|---|
CoMSIA-EH | CoMSIA-SEH | T-CoMFA | ||||||
64 | H | H | H | H | H | 3.830 | 3.873 | 3.880 |
64a | H | Et | H | OCH3 | H | 3.485 | 3.457 | 3.770 |
64b | H | H | H | H | Et | 3.378 | 3.349 | 3.880 |
64c | H | H | H | BnO | H | 3.680 | 3.568 | 3.820 |
64d | H | H | SOOH | H | H | 3.916 | 3.947 | 3.920 |
64e | H | H | SOOCH3 | H | H | 3.952 | 3.962 | 3.882 |
64f | H | Et | SOOH | H | H | 3.830 | 3.782 | 3.878 |
64g | H | Et | SO3CH3 | H | H | 3.988 | 4.012 | 3.860 |
64h | H | Et | SOOCH3 | H | H | 3.980 | 3.989 | 3.830 |
64i | F | Et | SO3CH3 | H | H | 3.826 | 3.875 | 3.650 |
64j | H | H | 4-piperidyl | H | H | 3.825 | 3.869 | 3.890 |
Fig.6 RMSDs(A) of backbone Cα atoms for CDK9-analogs complex systems, RMSDs(B) of heavy atoms for ligands and RMSF(C) of each residue for CDK9-analogs complex systems
Method | Compound | ΔGvdW/ (kJ·mol-1) | ΔGele/ (kJ·mol-1) | ΔGepb/ (kJ·mol-1) | ΔGenp/ (kJ·mol-1) | ΔGedi/ (kJ·mol-1) | ΔGpred/ (kJ·mol-1) |
---|---|---|---|---|---|---|---|
PBSA | 64 | -235.92 | -169.07 | 294.49 | -156.05 | 282.81 | 16.16 |
64d | -247.77 | -226.50 | 342.00 | -179.54 | 313.70 | 1.88 | |
Method | Compound | ΔGvdW/ (kJ·mol-1) | ΔGele/ (kJ·mol-1) | ΔGele,sol/ (kJ·mol-1) | ΔGnonpol,sol/ (kJ·mol-1) | ΔGpred/ (kJ·mol-1) | |
GBSA | 64 | -235.92 | -169.07 | 237.72 | -28.30 | -195.61 | |
64d | -247.77 | -226.50 | 277.82 | -33.74 | -23.23 |
Table 3 Predicted activities of new designed compounds*
Method | Compound | ΔGvdW/ (kJ·mol-1) | ΔGele/ (kJ·mol-1) | ΔGepb/ (kJ·mol-1) | ΔGenp/ (kJ·mol-1) | ΔGedi/ (kJ·mol-1) | ΔGpred/ (kJ·mol-1) |
---|---|---|---|---|---|---|---|
PBSA | 64 | -235.92 | -169.07 | 294.49 | -156.05 | 282.81 | 16.16 |
64d | -247.77 | -226.50 | 342.00 | -179.54 | 313.70 | 1.88 | |
Method | Compound | ΔGvdW/ (kJ·mol-1) | ΔGele/ (kJ·mol-1) | ΔGele,sol/ (kJ·mol-1) | ΔGnonpol,sol/ (kJ·mol-1) | ΔGpred/ (kJ·mol-1) | |
GBSA | 64 | -235.92 | -169.07 | 237.72 | -28.30 | -195.61 | |
64d | -247.77 | -226.50 | 277.82 | -33.74 | -23.23 |
Fig.7 Comparison of per-residue energy decomposition for key residues of two systems in GBSA model(A) The van der Waals energy. a. I25, b. G26, c. Q27, d. F30, e. V33, f. A46, g. F103, h. F105, i. C106, j. H108, k. D109, l. A153, m. N154, n. L156, o. D167; (B) the electrostatic energy. a. K24, b. I25, c. G26, d. Q27, e. K35, f. K48, g. E66, h. D104, i. F105, j. C106, k. D109, l. D149, m. K151, n. A153, o. D167, p. E221.
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