Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B, C, D, E... (A, B, C, D, E...) | Bacterioferritin | polymer | 161 | 18500.8 | 12 | UniProt (A0QY79) Pfam (PF00210) | Mycobacterium smegmatis str. MC2 155 | |
| 2 | AA, CA, CB, DA, DB... (D, E, L, F, G...) | ZINC ION | non-polymer | 65.4 | 24 | Chemie (ZN) | |||
| 3 | BB, EA, IA, NA, O... (L, E, F, H, A...) | MAGNESIUM ION | non-polymer | 24.3 | 12 | Chemie (MG) | |||
| 4 | AB, EB, FA, OA, SA... (K, L, E, H, I...) | PROTOPORPHYRIN IX CONTAINING FE | non-polymer | 616.5 | 7 | Chemie (HEM) | |||
| 5 | BA, WA (D, J) | 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID | non-polymer | 238.3 | 2 | Chemie (EPE) | |||
| 6 | FB, GB, HB, IB, JB... (A, B, C, D, F...) | water | water | 18.0 | 41 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 12 |
| Total formula weight | 222010.0 | |
| Non-Polymers* | Number of molecules | 45 |
| Total formula weight | 6653.5 | |
| All* | Total formula weight | 228663.5 |






