4Z7P
X-ray structure of racemic ShK Q16K toxin
Entity
Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
1 | A | Potassium channel toxin kappa-stichotoxin-She1a | polymer | 35 | 4070.9 | 1 | UniProt (P29187) In PDB | Stoichactis helianthus | kappa-SHTX-She1a,Potassium channel toxin ShK |
2 | A | SULFATE ION | non-polymer | 96.1 | 5 | Chemie (SO4) | |||
3 | water | water | 18.0 | 38 | Chemie (HOH) |
Sequence modifications
A: 1 - 35 (UniProt: P29187)
PDB | External Database | Details |
---|---|---|
Lys 16 | Gln 16 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 1 |
Total formula weight | 4070.9 | |
Non-Polymers* | Number of molecules | 5 |
Total formula weight | 480.3 | |
All* | Total formula weight | 4551.3 |