KCNK2
potassium two pore domain channel subfamily K member 2 | K2p2.1, TREK-1

This gene encodes one of the members of the two-pore-domain background potassium channel protein family. This type of potassium channel is formed by two homodimers that create a channel that leaks potassium out of the cell to control resting membrane potential. The channel can be opened, however, by certain anesthetics, membrane stretching, intracellular acidosis, and heat. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Biological processes 57 terms
apical plasma membrane (GO:0016324)astrocyte projection (GO:0097449)astrocyte projection (GO:0097449)axon (GO:0030424)axon terminus (GO:0043679)calyx of Held (GO:0044305)cardiac ventricle development (GO:0003231)cell surface (GO:0009986)cellular response to arachidonate (GO:1904551)cellular response to arachidonate (GO:1904551)cellular response to hypoxia (GO:0071456)chloride transmembrane transport (GO:1902476)cochlea development (GO:0090102)dendrite (GO:0030425)dendrite (GO:0030425)detection of mechanical stimulus involved in sensory perception of touch (GO:0050976)detection of mechanical stimulus involved in sensory perception of touch (GO:0050976)endoplasmic reticulum (GO:0005783)endoplasmic reticulum membrane (GO:0005789)glutamate secretion (GO:0014047)glutamate secretion (GO:0014047)identical protein binding (GO:0042802)ligand-gated channel activity (GO:0022834)ligand-gated channel activity (GO:0022834)mechanosensitive potassium channel activity (GO:0098782)mechanosensitive potassium channel activity (GO:0098782)membrane (GO:0016020)memory (GO:0007613)negative regulation of DNA biosynthetic process (GO:2000279)negative regulation of cardiac muscle cell proliferation (GO:0060044)neuronal action potential (GO:0019228)neuronal action potential (GO:0019228)neuronal cell body (GO:0043025)node of Ranvier (GO:0033268)node of Ranvier (GO:0033268)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)positive regulation of cellular response to hypoxia (GO:1900039)postsynaptic density membrane (GO:0098839)potassium channel activity (GO:0005267)potassium channel inhibitor activity (GO:0019870)potassium ion leak channel activity (GO:0022841)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 transmembrane transport (GO:0071805)protein heterodimerization activity (GO:0046982)regulation of synaptic transmission, GABAergic (GO:0032228)response to axon injury (GO:0048678)response to mechanical stimulus (GO:0009612)sarcolemma (GO:0042383)
Expression (TPM)
KCNK2 — as a Regulated Gene

TFs regulating KCNK2 0 TFs

Transcription factors with Perturb-seq knockdown data for KCNK2. 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 = KCNK2 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 KCNK2

Open chromatin peaks (ATAC-seq) in the genomic neighbourhood of KCNK2, 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
chr1:215,076,390–215,076,760 6.0 kb Proximal (<10kb) 79
chr1:215,081,663–215,083,985 at TSS At TSS 426

Genome Browser

Genomic view of the KCNK2 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.

chr1:215,066,390 – 215,093,985
Proximal 1 kb Distal 10 kb Multiome HiCAR ATAC-seq RNA-seq