| 1QME | A:71-232 | PENICILLIN-BINDING PROTEIN 2X (PBP-2X) |
| 1QMF | A:71-234 | PENICILLIN-BINDING PROTEIN 2X (PBP-2X) ACYL-ENZYME COMPLEX |
| 1RP5 | B:71-249; B:71-249 | PBP2X FROM STREPTOCOCCUS PNEUMONIAE STRAIN 5259 WITH REDUCED SUSCEPTIBILITY TO BETA-LACTAM ANTIBIOTICS |
| 2Z2L | D:73-232; D:73-232 | PENICILLIN-BINDING PROTEIN 2X (PBP2X) FROM STREPTOCOCCUS PNEUMONIAE |
| 2Z2M | D:73-232; D:73-232 | CEFDITOREN-ACYLATED PENICILLIN-BINDING PROTEIN 2X (PBP2X) FROM STREPTOCOCCUS PNEUMONIAE |
| 2ZC3 | D:73-232; D:73-232 | PENICILLIN-BINDING PROTEIN 2X (PBP 2X) ACYL-ENZYME COMPLEX (BIAPENEM) FROM STREPTOCOCCUS PNEUMONIAE |
| 2ZC4 | D:73-232; D:73-232 | PENICILLIN-BINDING PROTEIN 2X (PBP 2X) ACYL-ENZYME COMPLEX (TEBIPENEM) FROM STREPTOCOCCUS PNEUMONIAE |