4LCU
Structure of KcsA with E118A mutation
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | Fab light chain | polymer | 219 | 23411.2 | 1 | Mus musculus (mouse) | ||
| 2 | B (B) | Fab heavy chain | polymer | 212 | 23435.7 | 1 | Mus musculus (mouse) | ||
| 3 | C (C) | pH-gated potassium channel KcsA | polymer | 131 | 14105.6 | 1 | UniProt (P0A334) Pfam (PF00520) Pfam (PF07885) | Streptomyces lividans | Streptomyces lividans K+ channel, SKC1 |
| 4 | D, E, F, G, H... (C) | POTASSIUM ION | non-polymer | 39.1 | 6 | Chemie (K) | |||
| 5 | J (C) | DIACYL GLYCEROL | non-polymer | 625.0 | 1 | Chemie (DGA) | |||
| 6 | K, L, M (A, B, C) | water | water | 18.0 | 56 | Chemie (HOH) |
Sequence modifications
C: 2 - 124 (UniProt: P0A334)
| PDB | External Database | Details |
|---|---|---|
| Ser -6 | - | EXPRESSION TAG |
| Met -5 | - | EXPRESSION TAG |
| His -4 | - | EXPRESSION TAG |
| His -3 | - | EXPRESSION TAG |
| His -2 | - | EXPRESSION TAG |
| His -1 | - | EXPRESSION TAG |
| His 0 | - | EXPRESSION TAG |
| His 1 | - | EXPRESSION TAG |
| Ala 118 | Glu 118 | ENGINEERED MUTATION |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 3 |
| Total formula weight | 60952.5 | |
| Non-Polymers* | Number of molecules | 7 |
| Total formula weight | 859.6 | |
| All* | Total formula weight | 61812.1 |
