KCNK3
potassium two pore domain channel subfamily K member 3 | K2p3.1, TASK, TASK-1, TASK1

This gene encodes a member of the superfamily of potassium channel proteins that contain two pore-forming P domains. The encoded protein is an outwardly rectifying channel that is sensitive to changes in extracellular pH and is inhibited by extracellular acidification. Also referred to as an acid-sensitive potassium channel, it is activated by the anesthetics halothane and isoflurane. Although three transcripts are detected in northern blots, there is currently no sequence available to confirm transcript variants for this gene. [provided by RefSeq, Aug 2008]

Biological processes 39 terms
S100 protein binding (GO:0044548)cellular response to acidic pH (GO:0071468)cellular response to acidic pH (GO:0071468)cellular response to hypoxia (GO:0071456)cellular response to zinc ion (GO:0071294)chemical synaptic transmission (GO:0007268)cochlea development (GO:0090102)detection of hypoxic conditions in blood by carotid body chemoreceptor signaling (GO:0003029)detection of hypoxic conditions in blood by carotid body chemoreceptor signaling (GO:0003029)membrane (GO:0016020)monoatomic ion channel activity (GO:0005216)monoatomic ion transmembrane transport (GO:0034220)negative regulation of cytosolic calcium ion concentration (GO:0051481)open rectifier potassium channel activity (GO:0005252)outward rectifier potassium channel activity (GO:0015271)outward rectifier potassium channel activity (GO:0015271)outward rectifier potassium channel activity (GO:0015271)plasma membrane (GO:0005886)plasma membrane (GO:0005886)plasma membrane (GO:0005886)plasma membrane (GO:0005886)plasma membrane (GO:0005886)potassium channel activity (GO:0005267)potassium channel activity (GO:0005267)potassium ion leak channel activity (GO:0022841)potassium ion leak channel activity (GO:0022841)potassium ion transmembrane transport (GO:0071805)potassium ion transmembrane transport (GO:0071805)potassium ion transport (GO:0006813)potassium ion transport (GO:0006813)protein binding (GO:0005515)protein heterodimerization activity (GO:0046982)protein heterodimerization activity (GO:0046982)regulation of action potential firing rate (GO:0099605)regulation of resting membrane potential (GO:0060075)response to xenobiotic stimulus (GO:0009410)sodium channel activity (GO:0005272)sodium ion transmembrane transport (GO:0035725)synapse (GO:0045202)
Expression (TPM)
KCNK3 — as a Regulated Gene

TFs regulating KCNK3 0 TFs

Transcription factors with Perturb-seq knockdown data for KCNK3. The Binding column indicates whether any binding evidence exists for this TF–gene pair (ChIP-seq or motif footprint peaks). The Mean coef is the average Perturb-seq regression coefficient across active gRNAs (positive = KCNK3 upregulated upon KD; negative = downregulated). The Outlier column indicates whether this gene is in the top or bottom 5% of all TF knockdown effects.

Data: Effect:
TF Mean coef Binding Outlier TF→Gene link

Elements linked to KCNK3

Open chromatin peaks (ATAC-seq) in the genomic neighbourhood of KCNK3, linked by TSS proximity or chromatin conformation (Multiome / HiCAR). Each element overlaps at least one TF ChIP-seq binding site — the TFs column shows how many distinct TFs bind that element.

Accessibility Element Dist. to TSS Link type TFs
chr2:26,692,280–26,693,600 at TSS At TSS 275

Genome Browser

Genomic view of the KCNK3 locus showing ATAC-seq accessibility and RNA-seq expression across the ESC → DE time course, together with TF binding peaks and element-to-TSS loop connections.

chr2:26,682,280 – 26,703,600
Proximal 1 kb Distal 10 kb Multiome HiCAR ATAC-seq RNA-seq