3ZRS
X-ray crystal structure of a KirBac potassium channel highlights a mechanism of channel opening at the bundle-crossing gate.
Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0005242 | molecular_function | inward rectifier potassium channel activity |
| A | 0005886 | cellular_component | plasma membrane |
| A | 0006811 | biological_process | monoatomic ion transport |
| A | 0006813 | biological_process | potassium ion transport |
| A | 0016020 | cellular_component | membrane |
| A | 0034220 | biological_process | monoatomic ion transmembrane transport |
| A | 0034702 | cellular_component | monoatomic ion channel complex |
| A | 0034765 | biological_process | regulation of monoatomic ion transmembrane transport |
| A | 0042802 | molecular_function | identical protein binding |
| A | 0071805 | biological_process | potassium ion transmembrane transport |
| A | 0098655 | biological_process | monoatomic cation transmembrane transport |
| A | 1990573 | biological_process | potassium ion import across plasma membrane |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 8 |
| Details | BINDING SITE FOR RESIDUE CL A 1301 |
| Chain | Residue |
| A | ARG129 |
| A | ARG129 |
| A | ARG129 |
| A | ARG129 |
| A | CL1302 |
| A | CL1302 |
| A | CL1302 |
| A | CL1302 |
| site_id | AC2 |
| Number of Residues | 8 |
| Details | BINDING SITE FOR RESIDUE CL A 1302 |
| Chain | Residue |
| A | ARG129 |
| A | ARG129 |
| A | ARG129 |
| A | CL1301 |
| A | CL1301 |
| A | CL1301 |
| A | CL1301 |
| A | ARG129 |
| site_id | AC3 |
| Number of Residues | 12 |
| Details | BINDING SITE FOR RESIDUE K A 1303 |
| Chain | Residue |
| A | GLY98 |
| A | GLY98 |
| A | GLY98 |
| A | GLY98 |
| A | TYR99 |
| A | TYR99 |
| A | TYR99 |
| A | TYR99 |
| A | K1304 |
| A | K1304 |
| A | K1304 |
| A | K1304 |
| site_id | AC4 |
| Number of Residues | 16 |
| Details | BINDING SITE FOR RESIDUE K A 1304 |
| Chain | Residue |
| A | ILE97 |
| A | ILE97 |
| A | ILE97 |
| A | ILE97 |
| A | GLY98 |
| A | GLY98 |
| A | GLY98 |
| A | GLY98 |
| A | K1303 |
| A | K1303 |
| A | K1303 |
| A | K1303 |
| A | K1305 |
| A | K1305 |
| A | K1305 |
| A | K1305 |
| site_id | AC5 |
| Number of Residues | 16 |
| Details | BINDING SITE FOR RESIDUE K A 1305 |
| Chain | Residue |
| A | THR96 |
| A | THR96 |
| A | THR96 |
| A | THR96 |
| A | ILE97 |
| A | ILE97 |
| A | ILE97 |
| A | ILE97 |
| A | K1304 |
| A | K1304 |
| A | K1304 |
| A | K1304 |
| A | K1306 |
| A | K1306 |
| A | K1306 |
| A | K1306 |
| site_id | AC6 |
| Number of Residues | 8 |
| Details | BINDING SITE FOR RESIDUE K A 1306 |
| Chain | Residue |
| A | THR96 |
| A | THR96 |
| A | THR96 |
| A | THR96 |
| A | K1305 |
| A | K1305 |
| A | K1305 |
| A | K1305 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 209 |
| Details | TOPO_DOM: Cytoplasmic |
| Chain | Residue | Details |
| A | MET1-PRO47 | |
| A | TYR132-GLN295 |
| site_id | SWS_FT_FI2 |
| Number of Residues | 45 |
| Details | TRANSMEM: Helical |
| Chain | Residue | Details |
| A | VAL48-LEU69 | |
| A | PRO107-ILE131 |
| site_id | SWS_FT_FI3 |
| Number of Residues | 12 |
| Details | TOPO_DOM: Extracellular |
| Chain | Residue | Details |
| A | ALA70-SER82 |
| site_id | SWS_FT_FI4 |
| Number of Residues | 12 |
| Details | INTRAMEM: Helical; Pore-forming |
| Chain | Residue | Details |
| A | PHE83-ALA95 |
