3LDD
High resolution open MthK pore structure crystallized in 100 mM K+ and further soaked in 99 mM Na+/1 mM K+.
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 12 |
| Details | BINDING SITE FOR RESIDUE K A 1 |
| Chain | Residue |
| A | K2 |
| A | TYR62 |
| A | TYR62 |
| A | TYR62 |
| A | K2 |
| A | K2 |
| A | K2 |
| A | GLY61 |
| A | GLY61 |
| A | GLY61 |
| A | GLY61 |
| A | TYR62 |
| site_id | AC2 |
| Number of Residues | 16 |
| Details | BINDING SITE FOR RESIDUE K A 2 |
| Chain | Residue |
| A | K1 |
| A | K1 |
| A | K1 |
| A | K1 |
| A | K3 |
| A | K3 |
| A | K3 |
| A | K3 |
| A | VAL60 |
| A | VAL60 |
| A | VAL60 |
| A | VAL60 |
| A | GLY61 |
| A | GLY61 |
| A | GLY61 |
| A | GLY61 |
| site_id | AC3 |
| Number of Residues | 16 |
| Details | BINDING SITE FOR RESIDUE K A 3 |
| Chain | Residue |
| A | K2 |
| A | K2 |
| A | K2 |
| A | K2 |
| A | K4 |
| A | K4 |
| A | K4 |
| A | K4 |
| A | THR59 |
| A | THR59 |
| A | THR59 |
| A | THR59 |
| A | VAL60 |
| A | VAL60 |
| A | VAL60 |
| A | VAL60 |
| site_id | AC4 |
| Number of Residues | 8 |
| Details | BINDING SITE FOR RESIDUE K A 4 |
| Chain | Residue |
| A | K3 |
| A | K3 |
| A | K3 |
| A | K3 |
| A | THR59 |
| A | THR59 |
| A | THR59 |
| A | THR59 |
| site_id | AC5 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE K A 5 |
| Chain | Residue |
| A | HOH100 |
| A | HOH100 |
| A | HOH100 |
| A | HOH100 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 20 |
| Details | Transmembrane: {"description":"Helical; Name=Outer helix M1"} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI2 |
| Number of Residues | 10 |
| Details | Topological domain: {"description":"Extracellular"} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI3 |
| Number of Residues | 9 |
| Details | Intramembrane: {"description":"Helical; Pore-forming","evidences":[{"evidenceCode":"ECO:0000255"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI4 |
| Number of Residues | 5 |
| Details | Intramembrane: {"description":"Pore-forming","evidences":[{"evidenceCode":"ECO:0000255"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI5 |
| Number of Residues | 25 |
| Details | Transmembrane: {"description":"Helical; Name=Inner helix M2"} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI6 |
| Number of Residues | 5 |
| Details | Motif: {"description":"Selectivity filter"} |
| Chain | Residue | Details |
