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 | antibody fragment heavy chain | polymer | 219 | 23411.2 | 1 | Mus musculus | ||
2 | B | antibody fragment light chain | polymer | 212 | 23435.7 | 1 | Mus musculus | ||
3 | C | pH-gated potassium channel KcsA | polymer | 103 | 10992.8 | 1 | UniProt (P0A334) Pfam (PF00520) Pfam (PF07885) In PDB | Streptomyces lividans | Streptomyces lividans K+ channel,SKC1 |
4 | A | NONAN-1-OL | non-polymer | 144.3 | 1 | Chemie (F09) | |||
5 | C | (1S)-2-HYDROXY-1-[(NONANOYLOXY)METHYL]ETHYL MYRISTATE | non-polymer | 442.7 | 1 | Chemie (1EM) | |||
6 | C | POTASSIUM ION | non-polymer | 39.1 | 4 | Chemie (K) | |||
7 | 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 |