Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B | PROTEIN (CLASS B BETA-LACTAMASE) | polymer | 232 | 25358.6 | 2 | UniProt (P25910) In PDB | Bacteroides fragilis | BETA-LACTAMASE |
| 2 | A, B | ZINC ION | non-polymer | 65.4 | 4 | Chemie (ZN) | |||
| 3 | A, B | SODIUM ION | non-polymer | 23.0 | 2 | Chemie (NA) | |||
| 4 | water | water | 18.0 | 419 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 50717.3 | |
| Non-Polymers* | Number of molecules | 6 |
| Total formula weight | 307.6 | |
| All* | Total formula weight | 51024.9 |
