Table 7. Docking results of the potent compounds towards Wild-type S. aureus PBP4 (PDB ID: 5TW8) and DNA gyrase B (PDB ID: 6KZV) binding pockets judged to co-crystallized ligands and reference agents.
| Compds | S-score (kcal mol−1) | RMSD (Å) | aBinding amino acids (bond type, length ‘Å’) | |||
|---|---|---|---|---|---|---|
| 5TW8 | 6KZV | 5TW8 | 6KZV | 5TW8 | 6KZV | |
| 4 | −7.2545 | −7.3414 | 1.7053 | 1.8591 | ASN 141 (H-acceptor, 3.19) | ILE 78 (pi–H, 4.55) |
| SER 116 (pi–H, 4.56) | ||||||
| 6 | −7.2781 | −7.7133 | 1.7217 | 1.0368 | SER 116 (H-acceptor, 3.24) | ASN 46 (pi–H, 3.85) |
| ILE 94 (pi–H, 4.29) | ||||||
| 7 | −7.1188 | −8.0359 | 1.5469 | 1.8005 | SER 262 (H-donor, 3.05) | ALA 100 (H-donor, 2.96) |
| SER 116 (H-acceptor, 3.08) | THR 165 (pi–H, 4.50) | |||||
| ASN 141 (H-acceptor, 2.91) | ||||||
| 10 | −7.8841 | −8.2369 | 1.6917 | 1.7899 | SER 116 (H-acceptor, 3.06) | ASN 46 (pi–H, 3.95) |
| TYR 239 (pi–H, 4.32) | ||||||
| Co-crystallized ligand | −8.0713 | −8.3347 | 1.4939 | 1.1922 | SER 139 (H-donor, 3.08) | ASP 73 (H-donor, 2.75) |
| SER 262 (H-donor, 3.02) | ||||||
| SER 262 (H-donor, 3.11) | ||||||
| GLY 181 (H-donor, 2.80) | GLU 50 (H-donor, 2.76) | |||||
| SER 75 (H-acceptor, 2.80) | ||||||
| SER 262 (H-acceptor, 2.85) | ||||||
| SER 139 (H-acceptor, 2.49) | ASP 49 (H-donor, 3.08) | |||||
| LYS 259 (H-acceptor, 2.64) | ||||||
| THR 260 (H-acceptor, 2.52) | ||||||
| LYS 259 (ionic, 2.64) | THR 165 (H-acceptor, 2.81) | |||||
| LYS 259 (ionic, 3.46) | ||||||
| GLU 297 (ionic, 3.27) | ||||||
| ALA 182 (pi–H, 4.11) | ASP 49 (ionic, 3.58) | |||||
| PHE 243 (pi–H, 4.18) | ||||||
| PHE 241 (pi–pi, 3.83) | ||||||
| bReference agent | −7.0120 | −7.3800 | 1.0899 | 1.2303 | SER 262 (H-donor, 3.04) | ASP 49 (H-donor, 3.08) |
| ALA 100 (H-donor, 2.73) | ||||||
| SER 116 (H-acceptor, 3.15) | ASP 45 (H-donor, 2.85) | |||||
| GLU 42 (H-donor, 2.90) | ||||||
Common amino acid between compounds with co-crystallized ligands and reference agents were italicized.
Reference agent: linezolid for 5TW8; gentamicin for 6KZV.