4QE9
Open MthK pore structure soaked in 10 mM Ba2+/100 mM K+
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A | Calcium-gated potassium channel MthK | polymer | 83 | 9148.7 | 1 | UniProt (O27564) Pfam (PF07885) In PDB | Methanothermobacter thermautotrophicus | |
| 2 | A | POTASSIUM ION | non-polymer | 39.1 | 6 | Chemie (K) | |||
| 3 | water | water | 18.0 | 43 | Chemie (HOH) |
Sequence modifications
A: 18 - 100 (UniProt: O27564)
| PDB | External Database | Details |
|---|---|---|
| His 68 | Ser 68 | engineered mutation |
| Cys 77 | Val 77 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 9148.7 | |
| Non-Polymers* | Number of molecules | 6 |
| Total formula weight | 234.6 | |
| All* | Total formula weight | 9383.3 |
