6NFU
Structure of the KcsA-G77A mutant or the 2,4-ion bound configuration of a K+ channel selectivity filter.
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | antibody fragment heavy chain | polymer | 219 | 23411.2 | 1 | Mus musculus | ||
| 2 | B (B) | antibody fragment light chain | polymer | 212 | 23435.7 | 1 | Mus musculus | ||
| 3 | C (C) | pH-gated potassium channel KcsA | polymer | 103 | 10992.8 | 1 | UniProt (P0A334) Pfam (PF00520) Pfam (PF07885) | Streptomyces lividans | Streptomyces lividans K+ channel,SKC1 |
| 4 | D (A) | NONAN-1-OL | non-polymer | 144.3 | 1 | Chemie (F09) | |||
| 5 | E (C) | (1S)-2-HYDROXY-1-[(NONANOYLOXY)METHYL]ETHYL MYRISTATE | non-polymer | 442.7 | 1 | Chemie (1EM) | |||
| 6 | F, G, H, I (C) | POTASSIUM ION | non-polymer | 39.1 | 4 | Chemie (K) | |||
| 7 | J, K, L (A, B, C) | water | water | 18.0 | 305 | Chemie (HOH) |
Sequence modifications
C: 22 - 124 (UniProt: P0A334)
| PDB | External Database | Details |
|---|---|---|
| Ala 77 | Gly 77 | engineered mutation |
| Cys 90 | Leu 90 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 3 |
| Total formula weight | 57839.7 | |
| Non-Polymers* | Number of molecules | 6 |
| Total formula weight | 743.3 | |
| All* | Total formula weight | 58583.1 |
