| Post Translational Modifications | N-glycosylated. Phosphorylation of Ser-264 is required for the binding of 14-3-3eta/YWHAH. Calcineurin-mediated dephosphorylation enhances channel activity. |
| Function | K(+) channel that conducts outward and inward rectifying currents at depolarized and hyperpolarized membrane potentials, respectively. The outward rectifying currents are voltage-dependent, coupled to K(+) electrochemical gradient across the membrane, whereas the inward currents can be induced in response to activation of Ca(2+)-mobilizing receptors. Homo- and heterodimerizes to form functional channels with distinct regulatory and gating properties. In trigeminal ganglia sensory neurons, the heterodimers of KCNK18/TRESK and KCNK2/TREK-1 or KCNK10/TREK-2 inhibit neuronal firing and neurogenic inflammation by stabilizing the resting membrane potential at K(+) equilibrium potential as well as by regulating the threshold of action potentials and the spike frequency. In thymocytes, conducts K(+) currents upon T cell receptor (TCR) signaling leading to sustained Ca(2+) influx and NF-kappa-B activation, FOXP3 transcription and positive selection of regulatory T cell (Treg) progenitor subsets. Appears to mediate the analgesics effects of hydroxy-alpha-sanshool, a metabolite naturally present in Schezuan pepper and other Xanthoxylum plants. |
| Protein Name | Potassium Channel Subfamily K Member 18Twik-Related Individual Potassium ChannelTwik-Related Spinal Cord Potassium Channel |
| Database Links | Reactome: R-HSA-1299344Reactome: R-HSA-5576886 |
| Cellular Localisation | Cell MembraneMulti-Pass Membrane Protein |
| Alternative Antibody Names | Anti-Potassium Channel Subfamily K Member 18 antibodyAnti-Twik-Related Individual Potassium Channel antibodyAnti-Twik-Related Spinal Cord Potassium Channel antibodyAnti-KCNK18 antibodyAnti-TRESK antibodyAnti-TRIK antibody |
Information sourced from Uniprot.org
