4L73
Ca2+-bound MthK RCK domain at 2.5 Angstrom
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) | Calcium-gated potassium channel MthK | polymer | 242 | 26887.6 | 2 | UniProt (O27564) Pfam (PF02254) Pfam (PF02080) | Methanothermobacter thermautotrophicus | |
| 2 | C, D, E, K, L (A, B) | CALCIUM ION | non-polymer | 40.1 | 5 | Chemie (CA) | |||
| 3 | F, G, H, I, J... (A, B) | SODIUM ION | non-polymer | 23.0 | 8 | Chemie (NA) | |||
| 4 | M (B) | CHLORIDE ION | non-polymer | 35.5 | 1 | Chemie (CL) | |||
| 5 | Q, R (A, B) | water | water | 18.0 | 95 | Chemie (HOH) |
Sequence modifications
A, B: 107 - 336 (UniProt: O27564)
| PDB | External Database | Details |
|---|---|---|
| Leu 337 | - | expression tag |
| Val 338 | - | expression tag |
| Pro 339 | - | expression tag |
| Arg 340 | - | expression tag |
| Gly 341 | - | expression tag |
| Ser 342 | - | expression tag |
| His 343 | - | expression tag |
| His 344 | - | expression tag |
| His 345 | - | expression tag |
| His 346 | - | expression tag |
| His 347 | - | expression tag |
| His 348 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 53775.2 | |
| Non-Polymers* | Number of molecules | 14 |
| Total formula weight | 419.8 | |
| All* | Total formula weight | 54195.0 |
