7RP0
Structural Snapshots of Intermediates in the Gating of a K+ Channel
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | KcsA Fab chain A | polymer | 219 | 23411.2 | 1 | Mus musculus (Mouse) | ||
| 2 | B (B) | KcsA Fab chain B | polymer | 212 | 23435.7 | 1 | Mus musculus (Mouse) | ||
| 3 | C (C) | pH-gated potassium channel KcsA | polymer | 103 | 10896.7 | 1 | UniProt (P0A334) Pfam (PF00520) Pfam (PF07885) | Streptomyces lividans | Streptomyces lividans K+ channel,SKC1 |
| 4 | D (A) | NONAN-1-OL | non-polymer | 144.3 | 1 | Chemie (F09) | |||
| 5 | E, F, G, H (C) | POTASSIUM ION | non-polymer | 39.1 | 4 | Chemie (K) | |||
| 6 | I (C) | TETRABUTYLAMMONIUM ION | non-polymer | 242.5 | 1 | Chemie (TBA) | |||
| 7 | J (C) | DIACYL GLYCEROL | non-polymer | 625.0 | 1 | Chemie (DGA) | |||
| 8 | K, L, M (A, B, C) | water | water | 18.0 | 37 | Chemie (HOH) |
Sequence modifications
C: 22 - 124 (UniProt: P0A334)
| PDB | External Database | Details |
|---|---|---|
| Ala 82 | Tyr 82 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 3 |
| Total formula weight | 57743.6 | |
| Non-Polymers* | Number of molecules | 7 |
| Total formula weight | 1168.1 | |
| All* | Total formula weight | 58911.8 |
