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. 2015 Aug 10;9:4515–4549. doi: 10.2147/DDDT.S86529

Table S2.

Contribution value of each descriptor to principal component for active and inactive DPP4 inhibitors

Descriptor Active
Inactive
PC1 PC2 PC3 PC1 PC2 PC3
MW 19.851 1.257 8.880 15.820 5.236 2.627
RBN 11.202 6.106 0.035 9.681 0.011 11.868
nCIC 2.421 1.914 30.046 5.246 15.672 0.308
nHDon 9.214 1.751 2.302 2.544 13.523 4.380
nHAcc 11.191 9.159 0.009 17.499 0.947 0.655
ALogP 0.101 2.341 17.513 0.589 24.441 2.160
TPSA(Tot) 13.235 2.371 3.139 14.558 6.069 0.466
Qm 5.461 5.526 16.146 7.933 8.633 1.091
Energy 1.612 19.254 0.569 9.382 2.579 2.876
Dipole 3.594 12.540 3.757 4.220 0.306 21.012
HOMO 3.585 13.378 7.945 0.974 4.565 25.521
LUMO 9.419 17.664 0.291 6.851 4.380 23.563
HOMO–LUMO 9.114 6.738 9.369 4.701 13.639 3.472

Note: The bold values show the highest loadings scores at the current PC, compared to other PCs.

Abbreviations: ALogP, Ghose–Crippen octanol–water partition coefficient; HOMO, highest occupied molecular orbital; HOMO–LUMO, energy gap between the HOMO and LUMO states; LUMO, lowest unoccupied molecular orbital; MW, molecular weight; nCIC, number of rings; nHAcc, number of hydrogen bond acceptors; nHDon, number of hydrogen bond donors; PC, principal component; Qm, mean absolute charge; RBN, rotatable bond number; TPSA, topological polar surface area.