TABLE 3.
The binding energies (ΔGbind) of the docked standard drugs and compounds 5–12 and their intermolecular interactions with the active site of the target enzymes.
| Antioxidant | Antibacterial | |||||
|---|---|---|---|---|---|---|
| (ΔGbind) | Docked complex (amino acid–ligand) interactions | Distance (Å) | (ΔGbind) | Docked complex (amino acid–ligand) interactions | Distance (Å) | |
| Standard drug | −7.5 | H-bonds | −8.3 | H-bonds | ||
| Asn267:ND2―standard drug | 2.97 | Arg76:NH1― standard drug | 2.94 | |||
| Asn267:ND2―standard drug | 2.95 | His99:N― standard drug | 2.97 | |||
| π-cation interaction | Ser121:OG― standard drug | 2.95 | ||||
| Arg272:NH1―standard drug | 4.95 | Ile94:O― standard drug | 2.19 | |||
| Arg272:NH1―standard drug | 5.96 | Val97:O― standard drug | 2.06 | |||
| Arg272:NH1―standard drug | 5.98 | π-cation interaction | ||||
| π-Sigma interaction | Arg76:NH1― standard drug | 5.15 | ||||
| Pro264:CB― standard. Drug | 3.75 | Arg76:NH2― standard drug | 4.13 | |||
| 5a | −6.9 | H-bonds | −7.7 | H-bonds | ||
| Asn267:ND2―compound5a | 3.09 | Thr165:OG1―compound5a | 3.09 | |||
| Asn267:O―compound5a | 1.98 | Thr165:OG1―compound5a | 2.35 | |||
| π-cation interaction | π-cation interaction | |||||
| Arg272:NH1―compound5a | 5.98 | Arg76:NH2―compound5a | 4.28 | |||
| Arg272:NH2―compound5a | 4.30 | |||||
| 5b | −7.0 | H-bonds | −7.9 | H-bonds | ||
| Asn267:ND2―compound5b | 3.04 | Thr165:OG1―compound5b | 2.96 | |||
| Asn267:O―compound5b | 1.86 | Thr165:OG1―compound5b | 2.47 | |||
| π-cation interaction | Asp73:OD1―compound5b | 2.49 | ||||
| Arg272:NH1―compound5b | 5.97 | π-cation interaction | ||||
| Arg272:NH2―compound5b | 4.61 | Arg76:NH2―compound5b | 3.96 | |||
| 5c | −7.1 | H-bonds | −8.1 | H-bonds | ||
| Asn267:ND2―compound5c | 3.03 | Thr165:OG1―compound5c | 3.00 | |||
| Asn267:O―compound5c | 2.18 | Thr165:OG1―compound5c | 2.15 | |||
| Lys270:O―compound5c | 2.40 | π-cation interaction | ||||
| π-cation interaction | Arg76:NH1―compound5c | 5.27 | ||||
| Arg76:NH2―compound5c | 3.84 | |||||
| Arg272:NH2―compound5c | 4.49 | |||||
| 5d | −7.7 | H-bonds | −8.0 | H-bonds | ||
| Tyr128:OH―compound5d | 3.13 | Thr165:OG1―compound5d | 3.02 | |||
| π–π interaction | π-cation interaction | |||||
| Tyr132―compound5d | 5.00 | Arg76:NH2―compound5d | 3.89 | |||
| Phe236―compound5d | 4.34 | |||||
| Phe228―compound5d | 3.99 | |||||
| 6 | −7.9 | H-bonds | −8.6 | H-bonds | ||
| Asn267:ND2―compound6 | 3.19 | Gly77:N―compound6 | 3.08 | |||
| Lys270:O―compound6 | 2.22 | Asp73:OD2―compound6 | 1.85 | |||
| π-cation interaction | Asp73:OD1―compound6 | 2.32 | ||||
| Arg272:NH2―compound6 | 5.99 | |||||
| 7 | −8.2 | H-bonds | −7.8 | H-bonds | ||
| Tyr126:OH―compound7 | 3.15 | Thr165:OG1―compound7 | 3.11 | |||
| Tyr128:OH―compound7 | 3.14 | π-cation interaction | ||||
| π–π interaction | Arg76:NH2―compound7 | 3.91 | ||||
| Phe178―compound7 | 5.64 | Arg76:NH2―compound7 | 4.91 | |||
| Tyr126―compound7 | 4.38 | |||||
| Tyr126―compound7 | 4.38 | |||||
| Tyr126―compound7 | 4.76 | |||||
| Tyr126―compound7 | 5.12 | |||||
| 9 | −9.1 | H-bonds | −9.3 | H-bonds | ||
| Gly235:O―compound9 | 2.33 | Asn46:ND2―compound9 | 2.76 | |||
| π–π interaction | Gly77:N―compound9 | 2.82 | ||||
| Tyr132―compound9 | 5.83 | Thr165:OG1―compound9 | 3.08 | |||
| Tyr132―compound9 | 4.97 | Thr165:OG1―compound9 | 2.29 | |||
| Tyr132―compound9 | 3.76 | |||||
| Tyr132―compound9 | 3.63 | |||||
| Phe228―compound9 | 5.25 | |||||
| Phe228―compound9 | 4.46 | |||||
| Phe228―compound9 | 5.97 | |||||
| 10 | −8.0 | H-bonds | −8.3 | H-bonds | ||
| Lys270:O―compound10 | 2.14 | Asn46:ND2―compound10 | 2.84 | |||
| π-cation interaction | Gly77:N―compound10 | 2.87 | ||||
| Arg272:NH1―compound10 | 6.00 | Thr165:OG1―compound10 | 2.92 | |||
| Arg272:NH2―compound10 | 3.95 | π-cation interaction | ||||
| Arg76:NH1―compound10 | 5.98 | |||||
| Arg76:NH2―compound10 | 4.86 | |||||
| 11 | −7.7 | H-bonds | −7.6 | H-bonds | ||
| Asn267:ND2―compound11 | 3.20 | Asn46:ND2―compound11 | 3.18 | |||
| Lys270:O―compound11 | 2.27 | Gly77:N―compound11 | 2.65 | |||
| π-cation interaction | π-cation interaction | |||||
| Arg272:NH2―compound11 | 3.46 | Arg76:NH2―compound11 | 4.77 | |||
| 12 | −8.7 | π-cation interaction | −9.2 | H-bonds | ||
| Arg272:NH1―compound12 | 5.36 | Asn46:ND2―compound12 | 3.07 | |||
| Arg272:NH1―compound12 | 5.98 | Gly77:N―compound12 | 2.68 | |||
| Arg272:NH1―compound12 | 5.76 | π-cation interaction | ||||
| Arg272:NH1―compound12 | 5.94 | Arg76:NH2―compound12 | 4.39 | |||
| Arg76:NH2―compound12 | 4.05 | |||||
| π-Sigma interaction | ||||||
| Ile78:CG1―compound12 | 3.43 | |||||