2Q68
Crystal Structure of Nak channel D66A, S70E double mutants
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B (A, B) | Potassium channel protein | polymer | 114 | 12827.3 | 2 | UniProt (Q81HW2) Pfam (PF07885) | Bacillus cereus | |
| 2 | C, F (A) | CALCIUM ION | non-polymer | 40.1 | 2 | Chemie (CA) | |||
| 3 | D, E, G (A) | SODIUM ION | non-polymer | 23.0 | 3 | Chemie (NA) | |||
| 4 | H, I (A, B) | water | water | 18.0 | 17 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 110 (UniProt: Q81HW2)
| PDB | External Database | Details |
|---|---|---|
| Ala 66 | Asp 66 | engineered mutation |
| Glu 70 | Ser 70 | engineered mutation |
| Leu 111 | - | expression tag |
| Val 112 | - | expression tag |
| Pro 113 | - | expression tag |
| Arg 114 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 25654.6 | |
| Non-Polymers* | Number of molecules | 5 |
| Total formula weight | 149.1 | |
| All* | Total formula weight | 25803.8 |
