Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | Ferritin, middle subunit | polymer | 176 | 20623.2 | 1 | UniProt (P07798) Pfam (PF00210) | Lithobates catesbeiana (American bullfrog) | Ferritin M,Ferritin H',Ferritin X |
| 2 | B, C, D, E, H... (A) | FE (II) ION | non-polymer | 55.8 | 6 | Chemie (FE2) | |||
| 3 | F, G, I, J (A) | MAGNESIUM ION | non-polymer | 24.3 | 4 | Chemie (MG) | |||
| 4 | L, M, N, O, P... (A) | CHLORIDE ION | non-polymer | 35.5 | 15 | Chemie (CL) | |||
| 5 | AA (A) | water | water | 18.0 | 345 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 20623.2 | |
| Non-Polymers* | Number of molecules | 25 |
| Total formula weight | 964.1 | |
| All* | Total formula weight | 21587.3 |
