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. 2015 Nov 20;26(4):243–254. doi: 10.1007/s13337-015-0280-x

Table 2.

Binding affinity of active compounds towards the envelope of DENV-2 virus

S. No Compounds CScorea Crash scoreb Polar scorec G scored PMF scoree D scoref Chem scoreg No. of hydrogen bonds
1. Nimbin 3.26 −1.11 0.01 −90.30 −10.14 −191.47 −15.507 4
2. Azadirone 3.15 −1.11 0.01 −93.30 −15.143 175.23 −21.252 2
3. Gedunin 3.11 −2.52 2.03 −104.87 −19.18 −206.00 −20.252 2
4. Salannin 1.49 −1.34 1.47 −272.24 −28.690 −155.09 −22.227 1
5. Ninbidol 1.44 −0.86 1.85 −206.94 8.424 −149.46 −20.544 1
6. Azadirachtin 3.23 −1.10 0.01 −95.8 −13.52 −190.47 −16.206 4
7. Panduratin* 1.25 −0.95 1.15 −205.91 −17.512 −138.32 −20.266 1

* Reference ligand

aCScore is a consensus scoring which uses multiple types of scoring functions to rank the affinity of ligands

bCrash-score revealing the inappropriate penetration into the binding site

CPolar region of the ligand

dG-score showing hydrogen bonding, complex (ligand–protein), and internal (ligand–ligand) energies

ePMF-score indicating the Helmholtz free energies of interactions for protein–ligand atom pairs (Potential of Mean Force, PMF)

fD-score for charge and van der Waals interactions between the protein and the ligand

gChem-score points for hydrogen bonding, lipophilic contact, and rotational entropy, along with an intercept term