3FB6
KcsA Potassium channel in the partially open state with 16 A opening at T112
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 fragment heavy chain | polymer | 219 | 23411.2 | 1 | Mus musculus | ||
| 2 | B | antibody fab fragment light chain | polymer | 212 | 23435.7 | 1 | Pfam (PF07654) UniProt (by SIFTS) (P01837) In PDB | Mus musculus | |
| 3 | C | Voltage-gated potassium channel | polymer | 104 | 10927.6 | 1 | UniProt (P0A334) Pfam (PF00520) Pfam (PF07885) In PDB | Streptomyces lividans | |
| 4 | C | POTASSIUM ION | non-polymer | 39.1 | 5 | Chemie (K) |
Sequence modifications
C: 21 - 124 (UniProt: P0A334)
| PDB | External Database | Details |
|---|---|---|
| Gln 25 | His 25 | engineered mutation |
| Cys 90 | Leu 90 | engineered mutation |
| Gln 117 | Arg 117 | engineered mutation |
| Gln 120 | Glu 120 | engineered mutation |
| Gln 121 | Arg 121 | engineered mutation |
| Gln 122 | Arg 122 | engineered mutation |
| Gln 124 | His 124 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 3 |
| Total formula weight | 57774.6 | |
| Non-Polymers* | Number of molecules | 5 |
| Total formula weight | 195.5 | |
| All* | Total formula weight | 57970.0 |
