4R42
Crystal structure of KatB, a manganese catalase from Anabaena PCC7120
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 (A, B, C) | Alr3090 protein | polymer | 236 | 26474.6 | 3 | UniProt (Q8YSJ5) | Nostoc sp. PCC 7120 | |
| 2 | D, E, J, K, O... (A, B, C) | MANGANESE (II) ION | non-polymer | 54.9 | 6 | Chemie (MN) | |||
| 3 | F, G, L, M, Q (A, B, C) | CALCIUM ION | non-polymer | 40.1 | 5 | Chemie (CA) | |||
| 4 | H, R (A, C) | TRIETHYLENE GLYCOL | non-polymer | 150.2 | 2 | Chemie (PGE) | |||
| 5 | I (A) | TETRAETHYLENE GLYCOL | non-polymer | 194.2 | 1 | Chemie (PG4) | |||
| 6 | N (B) | DI(HYDROXYETHYL)ETHER | non-polymer | 106.1 | 1 | Chemie (PEG) | |||
| 7 | S (C) | HEXAETHYLENE GLYCOL | non-polymer | 282.3 | 1 | Chemie (P6G) | |||
| 8 | T, U, V (A, B, C) | water | water | 18.0 | 386 | Chemie (HOH) |
Sequence modifications
A, B, C: 1 - 230 (UniProt: Q8YSJ5)
| PDB | External Database | Details |
|---|---|---|
| Val 2 | Phe 2 | engineered mutation |
| His 231 | - | expression tag |
| His 232 | - | expression tag |
| His 233 | - | expression tag |
| His 234 | - | expression tag |
| His 235 | - | expression tag |
| His 236 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 3 |
| Total formula weight | 79423.7 | |
| Non-Polymers* | Number of molecules | 16 |
| Total formula weight | 1413.0 | |
| All* | Total formula weight | 80836.8 |
