Id |
Subject |
Object |
Predicate |
Lexical cue |
T753 |
0-4 |
Sentence |
denotes |
3.5. |
T754 |
6-55 |
Sentence |
denotes |
Druglikeness and Bioactivity score (BAS) analysis |
T755 |
56-230 |
Sentence |
denotes |
Biological targets of prospective drug candidates can be classified into ion channels, proteases, kinases, G-protein coupled receptors (GPCRs), nuclear receptors and enzymes. |
T756 |
231-343 |
Sentence |
denotes |
The BAS of WS phytoconstituents was determined using web-based software Molinspiration (www.molinspiration.com). |
T757 |
344-588 |
Sentence |
denotes |
As a general rule, it is known that if the BAS > 0.0, then the drug candidate is physiologically active; if it is in the range −5.0 to 0.0; then the drug candidate is moderately active, and if the BAS< −5.0, then the drug candidate is inactive. |
T758 |
589-716 |
Sentence |
denotes |
It is evident from Table 13, that most of the WS phytoconstituents had positive values with respect to the following receptors. |
T759 |
718-724 |
Sentence |
denotes |
3.5.1. |
T760 |
726-741 |
Sentence |
denotes |
As GPCR ligands |
T761 |
742-875 |
Sentence |
denotes |
All WS phytoconstituents were active except withanolide E, anaferine and withasomnine which were predicted to be moderatively active. |
T762 |
876-1015 |
Sentence |
denotes |
Most of the reference drugs also had positive values for GPCR except procainamide and arbidol which were predicted to be moderately active. |
T763 |
1017-1023 |
Sentence |
denotes |
3.5.2. |
T764 |
1025-1032 |
Sentence |
denotes |
As ICMs |
T765 |
1033-1138 |
Sentence |
denotes |
All WS phytoconstituents had positive values except withasomnine which was found to be moderately active. |
T766 |
1139-1328 |
Sentence |
denotes |
Standard reference drugs losartan, cinacalcet, hydroxychloroquine, oberadilol and poziotinib were all found to be active whereas procainamide and arbidol were found to be moderately active. |
T767 |
1330-1336 |
Sentence |
denotes |
3.5.3. |
T768 |
1338-1344 |
Sentence |
denotes |
As KIs |
T769 |
1345-1454 |
Sentence |
denotes |
All WS phytoconstituents displayed moderate activity except withasomnine that displayed significant activity. |
T770 |
1455-1640 |
Sentence |
denotes |
Standard reference drugs losartan, hydroxychloroquine and poziotinib were found to be active whereas procainamide, cinacalcet, arbidol and oberadilol were found to be moderately active. |
T771 |
1642-1648 |
Sentence |
denotes |
3.5.4. |
T772 |
1650-1657 |
Sentence |
denotes |
As NRLs |
T773 |
1658-1834 |
Sentence |
denotes |
Withaferin A, withanolides A, B, D and E, withanone and viscosalactone B possessed significant BAS scores whereas anaferine and withasomnine were found to be moderately active. |
T774 |
1835-1915 |
Sentence |
denotes |
All standard reference drugs were predicted to have moderate BAS scores as NRLs. |
T775 |
1917-1923 |
Sentence |
denotes |
3.5.5. |
T776 |
1925-1931 |
Sentence |
denotes |
As PIs |
T777 |
1932-2079 |
Sentence |
denotes |
Withaferin A, withanolides A, B, D and E, withanone and viscosalactone B had positive BAS scores indicating their potential as protease inhibitors. |
T778 |
2080-2186 |
Sentence |
denotes |
On the other hand, anaferine and withasomnine were found to have moderate activity as protease inhibitors. |
T779 |
2187-2331 |
Sentence |
denotes |
Interestingly, most withanolides especially withanolide B and withanolide A showed potent binding to papain like protease of SARS-CoV-2 (PDB ID: |
T780 |
2332-2429 |
Sentence |
denotes |
6W9C), SARS-CoV 3CL-pro main protease (PDB ID: IP9U) and SARS-CoV-2 Nsp10/Nsp-16 complex (PDB ID: |
T781 |
2430-2502 |
Sentence |
denotes |
6W75) thus supporting their role as potential viral protease inhibitors. |
T782 |
2503-2729 |
Sentence |
denotes |
On the other hand, losartan, cinacalcet and hydroxychloroquine also displayed positive values as protease inhibitors whereas procainamide, arbidol, oberadilol and poziotinib displayed moderate potential as protease inhibitors. |
T783 |
2731-2737 |
Sentence |
denotes |
3.5.6. |
T784 |
2739-2745 |
Sentence |
denotes |
As EIs |
T785 |
2746-2995 |
Sentence |
denotes |
Most of the WS phytoconstituents including Withaferin A, withanolides A, B, D and E, withanone, viscosalactone B and anaferine had positive BAS scores indicating their potential as enzyme inhibitors whereas withasomnine displayed moderate potential. |
T786 |
2996-3351 |
Sentence |
denotes |
This observation was further validated by the fact that most of the phytoconstituents including Withaferin A, withanolides A, B, D and E, viscosalactone B and anaferine showed potent binding to human ACE2 receptor in the nanomolar range which was about 1000× times greater than the binding of known standard reference drugs arbidol and losartan (Table 4). |
T787 |
3352-3545 |
Sentence |
denotes |
This finding lends support for targeted use of withanolides from WS as SARS-CoV-2 entry blocking agents by virtue of their preferential binding to human ACE2, thereby blocking or inhibiting it. |
T788 |
3546-3734 |
Sentence |
denotes |
Losartan, cinacalcet, hydroxychloroquine, oberadilol and poziotinib also displayed significant potential as enzyme inhibitors whereas procainamide and arbidol displayed moderate potential. |
T789 |
3735-3845 |
Sentence |
denotes |
Druglikeness of a compound can be predicted by comparing its structural features with those of marketed drugs. |
T790 |
3846-3981 |
Sentence |
denotes |
All WS phytoconstituents showed molar lipophilicity (cLog P) <5 thereby indicating good permeability across cell membranes (Figure 2A). |
T791 |
3982-4171 |
Sentence |
denotes |
Withaferin A, withanolide D, viscosalactone B and withasomnine had positive values of druglikeness which indicated that these compounds contain fragments that are present in marketed drugs. |
T792 |
4172-4311 |
Sentence |
denotes |
Out of the standard reference drugs, procainamide, hydroxychloroquine and oberadilol exhibited positive scores for druglikeness (Table 14). |
T793 |
4312-4321 |
Sentence |
denotes |
Table 13. |
T794 |
4323-4518 |
Sentence |
denotes |
Bioactivity scores and Druglikeness of WS phytoconstituents versus FDA-approved standard reference drugs (Losartan, Procainamide, Cinacalcet, Arbidol, Hydroxychloroquine, Oberadilol, Poziotinib). |
T795 |
4519-4521 |
Sentence |
denotes |
S. |
T796 |
4522-4525 |
Sentence |
denotes |
No. |
T797 |
4527-4567 |
Sentence |
denotes |
Ligands Parameters of bioactivity score |
T798 |
4568-4712 |
Sentence |
denotes |
GPCR ligand Ion channel modulator (ICM) Kinase inhibitor (KI) Nuclear receptor ligand (NRL) Protease inhibitor (PI) Enzymeinhibitor (EI) |
T799 |
4713-4738 |
Sentence |
denotes |
|
T800 |
4739-4741 |
Sentence |
denotes |
1. |
T801 |
4743-4795 |
Sentence |
denotes |
Withaferin A 0.07 0.14 –0.49 0.76 0.15 0.94 |
T802 |
4796-4798 |
Sentence |
denotes |
2. |
T803 |
4800-4853 |
Sentence |
denotes |
Withanolide A 0.04 0.32 –0.43 0.71 0.15 0.86 |
T804 |
4854-4856 |
Sentence |
denotes |
3. |
T805 |
4858-4911 |
Sentence |
denotes |
Withanolide B 0.07 0.24 –0.47 0.79 0.15 0.76 |
T806 |
4912-4914 |
Sentence |
denotes |
4. |
T807 |
4916-4969 |
Sentence |
denotes |
Withanolide D 0.05 0.30 –0.50 0.73 0.16 1.07 |
T808 |
4970-4972 |
Sentence |
denotes |
5. |
T809 |
4974-5028 |
Sentence |
denotes |
Withanolide E –0.70 0.16 –0.50 0.61 0.06 0.89 |
T810 |
5029-5031 |
Sentence |
denotes |
6. |
T811 |
5033-5082 |
Sentence |
denotes |
Withanone 0.00 0.27 –0.38 0.71 0.12 0.78 |
T812 |
5083-5085 |
Sentence |
denotes |
7. |
T813 |
5087-5143 |
Sentence |
denotes |
Viscosalactone B 0.03 0.04 –0.51 0.78 0.19 0.84 |
T814 |
5144-5146 |
Sentence |
denotes |
8. |
T815 |
5148-5200 |
Sentence |
denotes |
Anaferine –0.08 0.17 –0.60 –0.58 –0.14 0.08 |
T816 |
5201-5203 |
Sentence |
denotes |
9. |
T817 |
5205-5261 |
Sentence |
denotes |
Withasomnine –0.49 –0.43 0.58 –0.10 –0.58 –0.17 |
T818 |
5262-5265 |
Sentence |
denotes |
10. |
T819 |
5267-5314 |
Sentence |
denotes |
Losartan 1.06 0.16 0.03 0.01 0.33 0.44 |
T820 |
5315-5318 |
Sentence |
denotes |
11. |
T821 |
5320-5376 |
Sentence |
denotes |
Procainamide –0.09 0.01 –0.10 –0.70 –0.20 –0.04 |
T822 |
5377-5380 |
Sentence |
denotes |
12. |
T823 |
5382-5433 |
Sentence |
denotes |
Cinacalcet 0.22 0.15 –0.0.8 0.00 0.17 0.02 |
T824 |
5434-5437 |
Sentence |
denotes |
13. |
T825 |
5439-5491 |
Sentence |
denotes |
Arbidol –0.19 –0.44 –0.39 –0.34 –0.46 –0.07 |
T826 |
5492-5495 |
Sentence |
denotes |
14. |
T827 |
5497-5555 |
Sentence |
denotes |
Hydroxychloroquine 0.35 0.30 0.44 –0.12 0.12 0.15 |
T828 |
5556-5559 |
Sentence |
denotes |
15. |
T829 |
5561-5614 |
Sentence |
denotes |
Oberadilol 0.04 –0.47 –0.43 –0.37 –0.02 0.02 |
T830 |
5615-5618 |
Sentence |
denotes |
16. |
T831 |
5620-5672 |
Sentence |
denotes |
Poziotinib 0.04 –0.17 0.53 –0.35 –0.27 0.01 |
T832 |
5673-5686 |
Sentence |
denotes |
Rule: BAS >0: |
T833 |
5687-5694 |
Sentence |
denotes |
Active; |
T834 |
5695-5708 |
Sentence |
denotes |
BAS –5.0–0.0: |
T835 |
5709-5759 |
Sentence |
denotes |
Moderately active, moderately active and inactive. |
T836 |
5760-5769 |
Sentence |
denotes |
BAS ≤5.0: |
T837 |
5770-5779 |
Sentence |
denotes |
Inactive; |