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. 2021 Jun 10;9:679967. doi: 10.3389/fchem.2021.679967

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