5VMS
CryoEM structure of Xenopus KCNQ1 channel
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A | Potassium voltage-gated channel subfamily KQT member 1 | polymer | 548 | 62663.4 | 1 | UniProt (P70057) Pfam (PF00520) Pfam (PF03520) In PDB | Xenopus laevis (African clawed frog) | IKs producing slow voltage-gated potassium channel subunit alpha xKvLQT1, KQT-like 1, Voltage-gated potassium channel subunit Kv7.1, KCNQ1 |
| 2 | B | Calmodulin | polymer | 149 | 16852.5 | 1 | UniProt (P62158) Pfam (PF13499) UniProt (by SIFTS) (P0DP23) In PDB | Homo sapiens (Human) | CaM |
| 3 | B | CALCIUM ION | non-polymer | 40.1 | 3 | Chemie (CA) |
Sequence modifications
A: 67 - 610 (UniProt: P70057)
| PDB | External Database | Details |
|---|---|---|
| Met 66 | - | initiating methionine |
| Ser 611 | - | expression tag |
| Asn 612 | - | expression tag |
| Ser 613 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 79515.9 | |
| Non-Polymers* | Number of molecules | 3 |
| Total formula weight | 120.2 | |
| All* | Total formula weight | 79636.2 |
