8QQL
Cryo-EM structure of the human inward-rectifier potassium 2.1 channel (Kir2.1) - R312H mutant
Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0005242 | molecular_function | inward rectifier potassium channel activity |
| A | 0006813 | biological_process | potassium ion transport |
| A | 0016020 | cellular_component | membrane |
| B | 0005242 | molecular_function | inward rectifier potassium channel activity |
| B | 0006813 | biological_process | potassium ion transport |
| B | 0016020 | cellular_component | membrane |
| C | 0005242 | molecular_function | inward rectifier potassium channel activity |
| C | 0006813 | biological_process | potassium ion transport |
| C | 0016020 | cellular_component | membrane |
| D | 0005242 | molecular_function | inward rectifier potassium channel activity |
| D | 0006813 | biological_process | potassium ion transport |
| D | 0016020 | cellular_component | membrane |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 96 |
| Details | Transmembrane: {"description":"Helical; Name=M1","evidences":[{"evidenceCode":"ECO:0000250"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI2 |
| Number of Residues | 116 |
| Details | Topological domain: {"description":"Extracellular","evidences":[{"evidenceCode":"ECO:0000250"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI3 |
| Number of Residues | 44 |
| Details | Intramembrane: {"description":"Helical; Pore-forming; Name=H5","evidences":[{"evidenceCode":"ECO:0000250"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI4 |
| Number of Residues | 24 |
| Details | Intramembrane: {"description":"Pore-forming","evidences":[{"evidenceCode":"ECO:0000250"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI5 |
| Number of Residues | 84 |
| Details | Transmembrane: {"description":"Helical; Name=M2","evidences":[{"evidenceCode":"ECO:0000250"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI6 |
| Number of Residues | 108 |
| Details | Region: {"description":"Polyphosphoinositide (PIP2)-binding","evidences":[{"source":"UniProtKB","id":"Q64273","evidenceCode":"ECO:0000250"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI7 |
| Number of Residues | 20 |
| Details | Motif: {"description":"Selectivity filter","evidences":[{"evidenceCode":"ECO:0000250"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI8 |
| Number of Residues | 4 |
| Details | Binding site: {"evidences":[{"source":"PubMed","id":"36149965","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"7ZDZ","evidenceCode":"ECO:0007744"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI9 |
| Number of Residues | 4 |
| Details | Site: {"description":"Role in the control of polyamine-mediated channel gating and in the blocking by intracellular magnesium","evidences":[{"evidenceCode":"ECO:0000250"}]} |
| Chain | Residue | Details |
| site_id | SWS_FT_FI10 |
| Number of Residues | 4 |
| Details | Modified residue: {"description":"S-nitrosocysteine","evidences":[{"source":"PubMed","id":"19608980","evidenceCode":"ECO:0000269"}]} |
| Chain | Residue | Details |
