2HVK
crystal structure of the KcsA-Fab-TBA complex in high K+
Entity
Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
1 | A | Antibody Fab heavy chain | polymer | 219 | 23411.2 | 1 | Mus musculus (house mouse) | ||
2 | B | Antibody Fab light chain | polymer | 212 | 23435.7 | 1 | Mus musculus (house mouse) | ||
3 | C | Voltage-gated potassium channel | polymer | 124 | 13211.6 | 1 | UniProt (P0A334) Pfam (PF00520) Pfam (PF07885) In PDB | Streptomyces lividans | |
4 | A | NONAN-1-OL | non-polymer | 144.3 | 1 | Chemie (F09) | |||
5 | C | POTASSIUM ION | non-polymer | 39.1 | 6 | Chemie (K) | |||
6 | C | (2S)-3-HYDROXY-2-(NONANOYLOXY)PROPYL LAURATE | non-polymer | 414.6 | 1 | Chemie (L2C) | |||
7 | C | TETRABUTYLAMMONIUM ION | non-polymer | 242.5 | 1 | Chemie (TBA) | |||
8 | water | water | 18.0 | 178 | Chemie (HOH) |
Sequence modifications
C: 1 - 124 (UniProt: P0A334)
PDB | External Database | Details |
---|---|---|
Ala 2 | Pro 2 | engineered mutation |
Cys 90 | Leu 90 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 3 |
Total formula weight | 60058.6 | |
Non-Polymers* | Number of molecules | 9 |
Total formula weight | 1035.9 | |
All* | Total formula weight | 61094.5 |