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KCNK3 potassium two pore domain channel subfamily K member 3 [ Homo sapiens (human) ]

Gene ID: 3777, updated on 3-Apr-2024

Summary

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Official Symbol
KCNK3provided by HGNC
Official Full Name
potassium two pore domain channel subfamily K member 3provided by HGNC
Primary source
HGNC:HGNC:6278
See related
Ensembl:ENSG00000171303 MIM:603220; AllianceGenome:HGNC:6278
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
OAT1; PPH4; TASK; TASK1; TBAK1; K2p3.1; TASK-1
Summary
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]
Expression
Biased expression in adrenal (RPKM 48.3), placenta (RPKM 12.8) and 5 other tissues See more
Orthologs
mouse all
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Genomic context

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See KCNK3 in Genome Data Viewer
Location:
2p23.3
Exon count:
3
Annotation release Status Assembly Chr Location
RS_2023_10 current GRCh38.p14 (GCF_000001405.40) 2 NC_000002.12 (26692722..26733420)
RS_2023_10 current T2T-CHM13v2.0 (GCF_009914755.1) 2 NC_060926.1 (26731837..26774979)
105.20220307 previous assembly GRCh37.p13 (GCF_000001405.25) 2 NC_000002.11 (26915590..26956288)

Chromosome 2 - NC_000002.12Genomic Context describing neighboring genes Neighboring gene H3K4me1 hESC enhancer GRCh37_chr2:26813715-26814459 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr2:26814460-26815203 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr2:26821036-26821536 Neighboring gene calcium and integrin binding family member 4 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr2:26856058-26856598 Neighboring gene OCT4-NANOG-H3K4me1 hESC enhancer GRCh37_chr2:26878417-26879132 Neighboring gene ReSE screen-validated silencer GRCh37_chr2:26888285-26888441 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr2:26892685-26893186 Neighboring gene ReSE screen-validated silencer GRCh37_chr2:26894826-26895015 Neighboring gene Sharpr-MPRA regulatory region 9124 Neighboring gene ribosomal protein L37 pseudogene 11 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr2:26919925-26920426 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr2:26929035-26929932 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr2:26932169-26933090 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr2:26933091-26934010 Neighboring gene P300/CBP strongly-dependent group 1 enhancer GRCh37_chr2:26946480-26947679 Neighboring gene H3K27ac hESC enhancer GRCh37_chr2:26960802-26961302 Neighboring gene H3K27ac hESC enhancer GRCh37_chr2:26961303-26961803 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr2:26965319-26965824 Neighboring gene OCT4-NANOG-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr2:26972913-26973660 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr2:26975905-26976652 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr2:26976653-26977400 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr2:26977401-26978148 Neighboring gene NANOG-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr2:26981141-26981888 Neighboring gene NANOG-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr2:26981889-26982634 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 15476 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 11276 Neighboring gene solute carrier family 35 member F6 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr2:27007325-27008094 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 15477 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 11277 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 15478 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 15479 Neighboring gene centromere protein A

Genomic regions, transcripts, and products

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Go to nucleotide: Graphics FASTA GenBank

Expression

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  • Project title: HPA RNA-seq normal tissues
  • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
  • BioProject: PRJEB4337
  • Publication: PMID 24309898
  • Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

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Related articles in PubMed

  1. Gain-of-function mutations in KCNK3 cause a developmental disorder with sleep apnea. Sörmann J, et al. Nat Genet, 2022 Oct. PMID 36195757, Free PMC Article
  2. Crosstalk between BMP signaling and KCNK3 in phenotypic switching of pulmonary vascular smooth muscle cells. Yeo Y, et al. BMB Rep, 2022 Nov. PMID 36016502, Free PMC Article
  3. MicroRNAs Regulate TASK-1 and Are Linked to Myocardial Dilatation in Atrial Fibrillation. Wiedmann F, et al. J Am Heart Assoc, 2022 Apr 5. PMID 35301863, Free PMC Article
  4. A lower X-gate in TASK channels traps inhibitors within the vestibule. Rödström KEJ, et al. Nature, 2020 Jun. PMID 32499642
  5. [GG Genotype at rs1275988 and rs2586886 Loci of TWIK-related Acid-sensitive K (+) Channel-1 Gene is A Potential Risk Factor for Severe Obstructive Sleep Apnea]. Zhang L, et al. Zhongguo Yi Xue Ke Xue Yuan Xue Bao, 2020 Feb 28. PMID 32131935

See all (92) citations in PubMed

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
  1. Activation of neurokinin-III receptors modulates human atrial TASK-1 currents.
    Title: Activation of neurokinin-III receptors modulates human atrial TASK-1 currents.
  2. Crosstalk between BMP signaling and KCNK3 in phenotypic switching of pulmonary vascular smooth muscle cells.
    Title: Crosstalk between BMP signaling and KCNK3 in phenotypic switching of pulmonary vascular smooth muscle cells.
  3. Gain-of-function mutations in KCNK3 cause a developmental disorder with sleep apnea.
    Title: Gain-of-function mutations in KCNK3 cause a developmental disorder with sleep apnea.
  4. MicroRNAs Regulate TASK-1 and Are Linked to Myocardial Dilatation in Atrial Fibrillation.
    Title: MicroRNAs Regulate TASK-1 and Are Linked to Myocardial Dilatation in Atrial Fibrillation.
  5. Expression of Proton-Sensitive GPR31, GPR151, TASK1 and TASK3 in Common Skin Tumors.
    Title: Expression of Proton-Sensitive GPR31, GPR151, TASK1 and TASK3 in Common Skin Tumors.
  6. TASK-1 regulates mitochondrial function under hypoxia.
    Title: TASK-1 regulates mitochondrial function under hypoxia.
  7. Human adrenal glomerulosa cells express K2P and GIRK potassium channels that are inhibited by ANG II and ACTH.
    Title: Human adrenal glomerulosa cells express K2P and GIRK potassium channels that are inhibited by ANG II and ACTH.
  8. KCNK3 Mutation Causes Altered Immune Function in Pulmonary Arterial Hypertension Patients and Mouse Models.
    Title: KCNK3 Mutation Causes Altered Immune Function in Pulmonary Arterial Hypertension Patients and Mouse Models.
  9. Effects of the ventilatory stimulant, doxapram on human TASK-3 (KCNK9, K2P9.1) channels and TASK-1 (KCNK3, K2P3.1) channels.
    Title: Effects of the ventilatory stimulant, doxapram on human TASK-3 (KCNK9, K2P9.1) channels and TASK-1 (KCNK3, K2P3.1) channels.
  10. Vitamin D deficiency downregulates TASK-1 channels and induces pulmonary vascular dysfunction.
    Title: Vitamin D deficiency downregulates TASK-1 channels and induces pulmonary vascular dysfunction.
Submit: New GeneRIF Correction See all GeneRIFs (71)

Phenotypes

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Find tests for this gene in the NIH Genetic Testing Registry (GTR)

Review eQTL and phenotype association data in this region using PheGenI

Variation

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See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

Genotypes

HIV-1 interactions

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Protein interactions

Protein Gene Interaction Pubs
Vpu vpu HIV-1 Vpu and TASK-1 decrease HIV-1 transcription by suppressing unintegrated HIV-1 DNA, which is inhibited by overexpression of RelA PubMed
vpu HIV-1 Vpu interacts with TASK-1, a mammalian background K(+) channel, which in turn suppresses TASK-1 current in HEK-293 cells PubMed

Go to the HIV-1, Human Interaction Database

Pathways from PubChem

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Interactions

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Products Interactant Other Gene Complex Source Pubs Description

General gene information

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Markers

Homology

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables S100 protein binding IPI
Inferred from Physical Interaction
more info
 PubMed 
enables monoatomic ion channel activity IMP
Inferred from Mutant Phenotype
more info
 PubMed 
enables open rectifier potassium channel activity IEA
Inferred from Electronic Annotation
more info
  
enables outward rectifier potassium channel activity IBA
Inferred from Biological aspect of Ancestor
more info
  
enables potassium channel activity TAS
Traceable Author Statement
more info
 PubMed 
enables potassium ion leak channel activity IBA
Inferred from Biological aspect of Ancestor
more info
  
enables potassium ion leak channel activity IDA
Inferred from Direct Assay
more info
 PubMed 
Process Evidence Code Pubs
involved_in cellular response to hypoxia IEA
Inferred from Electronic Annotation
more info
  
involved_in cellular response to zinc ion IEA
Inferred from Electronic Annotation
more info
  
involved_in chemical synaptic transmission TAS
Traceable Author Statement
more info
 PubMed 
involved_in cochlea development IEA
Inferred from Electronic Annotation
more info
  
involved_in monoatomic ion transmembrane transport IMP
Inferred from Mutant Phenotype
more info
 PubMed 
involved_in negative regulation of cytosolic calcium ion concentration IEA
Inferred from Electronic Annotation
more info
  
involved_in potassium ion transmembrane transport IBA
Inferred from Biological aspect of Ancestor
more info
  
involved_in potassium ion transport TAS
Traceable Author Statement
more info
 PubMed 
involved_in regulation of resting membrane potential IEA
Inferred from Electronic Annotation
more info
  
involved_in response to xenobiotic stimulus IEA
Inferred from Electronic Annotation
more info
  
involved_in stabilization of membrane potential IBA
Inferred from Biological aspect of Ancestor
more info
  
Component Evidence Code Pubs
is_active_in plasma membrane IBA
Inferred from Biological aspect of Ancestor
more info
  
located_in plasma membrane IMP
Inferred from Mutant Phenotype
more info
 PubMed 
located_in plasma membrane TAS
Traceable Author Statement
more info
  
located_in synapse IEA
Inferred from Electronic Annotation
more info
  

General protein information

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Preferred Names
potassium channel subfamily K member 3
Names
TWIK-related acid-sensitive K(+) channel 1
TWIK-related acid-sensitive K+ 1
TWIK-related acid-sensitive K+ channel
acid-sensitive potassium channel protein TASK
acid-sensitive potassium channel protein TASK-1
cardiac potassium channel
potassium channel, two pore domain subfamily K, member 3
potassium inwardly-rectifying channel, subfamily K, member 3
two P domain potassium channel
two pore K(+) channel KT3.1
two pore potassium channel KT3.1

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

Genomic

  1. NG_033884.1 RefSeqGene

    Range
    5001..43486
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_002246.3 → NP_002237.1  potassium channel subfamily K member 3

    See identical proteins and their annotated locations for NP_002237.1

    Status: REVIEWED

    Source sequence(s)
    AC015977, AF065163
    Consensus CDS
    CCDS1727.1
    UniProtKB/Swiss-Prot
    O14649, Q53SU2
    Related
    ENSP00000306275.3, ENST00000302909.4
    Conserved Domains (1) summary
    pfam07885
    Location:77 → 132
    Ion_trans_2; Ion channel

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2023_10

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000002.12 Reference GRCh38.p14 Primary Assembly

    Range
    26692722..26733420
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_005264293.3 → XP_005264350.1  potassium channel subfamily K member 3 isoform X1

    See identical proteins and their annotated locations for XP_005264350.1

    UniProtKB/TrEMBL
    B9EIJ4
    Conserved Domains (2) summary
    pfam07885
    Location:57 → 137
    Ion_trans_2; Ion channel
    cl01544
    Location:3 → 60
    Bestrophin; Bestrophin, RFP-TM, chloride channel

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060926.1 Alternate T2T-CHM13v2.0

    Range
    26731837..26774979
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_054341941.1 → XP_054197916.1  potassium channel subfamily K member 3 isoform X1

Nucleotide Protein
Heading Accession and Version
Protein Accession Links
GenPept Link UniProtKB Link
O14649.1 GenPept UniProtKB/Swiss-Prot:O14649

Gene LinkOut

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