Q9NYG8 (KCNK4_HUMAN) Homo sapiens (Human)
Potassium channel subfamily K member 4 UniProtKBInterProSTRINGInteractive Modelling
393 aa; Sequence (Fasta) ; (Isoform 2);
3 identical sequences: Pan troglodytes: A0A6D2X5Q7, A0A2J8QCT9; Gorilla gorilla gorilla: G3RRZ9
It is possible new templates exist for this target since these models were created.
However, an attempt to improve models for this target was made on 2025-05-30. The outcome - failed for technical reasons.
Available Structures
12 Experimental Structures
| Description | PDB ID | Oligo-state | Range | Seq id (%) | Ligands | |
|---|---|---|---|---|---|---|
| Human TRAAK K+ channel FHIEG mutant A198E in a K+ bound conductive conformation |
Heteromer | 99.61 | 7×K; 3×CA; | |||
| Human TRAAK K+ channel FHEIG mutant A198E in a Tl+ bound conductive conformation |
Heteromer | 99.61 | 8×TL; 3×CA; | |||
| Human TRAAK K+ channel FHEIG mutant A270P in a K+ bound conductive conformation |
Heteromer | 99.61 | 7×K; 3×CA; | |||
| Human TRAAK K+ channel in a K+ bound conductive conformation |
Heteromer | 100.0 | 6×K; 3×CA; | |||
| Human TRAAK K+ channel in a K+ bound nonconductive conformation |
Heteromer | 100.0 | 5×K; 3×CA; 1×D10; | |||
| Human two pore domain K+ channel TRAAK (K2P4.1) - Fab complex structure |
Heteromer | 100.0 | 5×K; 2×CA; | |||
| Human TRAAK K+ channel mutant G158D in a K+ bound conductive conformation |
Heteromer | 99.61 | 6×K; 3×CA; | |||
| Human TRAAK K+ channel in a Tl+ bound conductive conformation |
Heteromer | 100.0 | 8×TL; 3×CA; | |||
| Human TRAAK K+ channel in a Tl+ bound nonconductive conformation |
Heteromer | 100.0 | 7×TL; 3×CA; 1×D10; | |||
| Crystal structure of the human two pore domain K+ ion channel TRAAK (K2P4.1) | homo-2-mer | 99.61 | 5×K; | |||
| Human K2P4.1 (TRAAK) potassium channel, G124I mutant | homo-2-mer | 99.59 | 6×K; | |||
| Human K2P4.1 (TRAAAK) potassium channel, W262S mutant | homo-2-mer | 99.6 | 6×K; | |||
2 SWISS-MODEL models
| Template | Oligo-state | QMEAN | Range | Ligands | Trg-Tpl Seq id (%) | |
|---|---|---|---|---|---|---|
| 4i9w.1.B | monomer | 0.72 | 99.27 | |||
| 3um7.1.A | homo-2-mer | 0.71 | 4×K; | 99.27 | ||
2 SWISS-MODEL models built on isoform sequence
| Isoform | Template | Oligo-state | QMEAN | Range | Ligands | Trg-Tpl Seq id (%) | |
|---|---|---|---|---|---|---|---|
| Isoform 2 | 3um7.1.A | homo-2-mer | 0.69 | 4×K; | 99.33 | ||
| Isoform 2 | 4rue.1.A | homo-2-mer | 0.66 | 4×K; | 99.00 | ||