Gene Gene information from NCBI Gene database.
Entrez ID 3777
Gene name Potassium two pore domain channel subfamily K member 3
Gene symbol KCNK3
Synonyms (NCBI Gene)
K2p3.1OAT1PPH4TASKTASK-1TASK1TBAK1
Chromosome 2
Chromosome location 2p23.3
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
SNPs SNP information provided by dbSNP.
7
SNP ID Visualize variation Clinical significance Consequence
rs398123039 G>A Pathogenic Coding sequence variant, missense variant
rs398123040 G>A Pathogenic 5 prime UTR variant, coding sequence variant, missense variant
rs398123041 G>C Pathogenic Coding sequence variant, missense variant
rs398123042 G>A,C Likely-pathogenic, pathogenic Coding sequence variant, missense variant
rs398123043 A>G Pathogenic Coding sequence variant, missense variant
miRNA miRNA information provided by mirtarbase database.
248
miRTarBase ID miRNA Experiments Reference
MIRT623516 hsa-miR-3691-3p HITS-CLIP 23824327
MIRT623515 hsa-miR-6814-5p HITS-CLIP 23824327
MIRT623514 hsa-miR-150-5p HITS-CLIP 23824327
MIRT623513 hsa-miR-6778-3p HITS-CLIP 23824327
MIRT623516 hsa-miR-3691-3p HITS-CLIP 23824327
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
44
GO ID Ontology Definition Evidence Reference
GO:0003029 Process Detection of hypoxic conditions in blood by carotid body chemoreceptor signaling IEA
GO:0003029 Process Detection of hypoxic conditions in blood by carotid body chemoreceptor signaling ISS
GO:0005216 Function Monoatomic ion channel activity IMP 12198146
GO:0005252 Function Open rectifier potassium channel activity IEA
GO:0005267 Function Potassium channel activity IEA
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
603220 6278 ENSG00000171303
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
O14649
Protein name Potassium channel subfamily K member 3 (Acid-sensitive potassium channel protein TASK-1) (TWIK-related acid-sensitive K(+) channel 1) (Two pore potassium channel KT3.1) (Two pore K(+) channel KT3.1)
Protein function K(+) channel that conducts voltage-dependent outward rectifying currents upon membrane depolarization. Voltage sensing is coupled to K(+) electrochemical gradient in an 'ion flux gating' mode where outward but not inward ion flow opens the gate
PDB 6RV2 , 6RV3 , 6RV4 , 9G9X
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF07885 Ion_trans_2 59 134 Ion channel Family
PF07885 Ion_trans_2 165 248 Ion channel Family
Tissue specificity TISSUE SPECIFICITY: Widespread expression in adult. Strongest expression in pancreas and placenta. Lower expression in brain, lung, prostate, heart, kidney, uterus, small intestine and colon.
Sequence
MKRQNVRTLALIVCTFTYLLVGAAVFDALESEPELIERQRLELRQQELRARYNLSQGGYE
ELERVVLRLKPHKAGVQWRFAGSFYFAITVITTIGYGHAAPSTDGGKVFCMFYALLGIPL
TLVMFQSLGERINT
LVRYLLHRAKKGLGMRRADVSMANMVLIGFFSCISTLCIGAAAFSH
YEHWTFFQAYYYCFITLTTIGFGDYVALQKDQALQTQPQYVAFSFVYILTGLTVIGAFLN
LVVLRFMT
MNAEDEKRDAEHRALLTRNGQAGGGGGGGSAHTTDTASSTAAAGGGGFRNVY
AEVLHFQSMCSCLWYKSREKLQYSIPMIIPRDLSTSDTCVEQSHSSPGGGGRYSDTPSRR
CLCSGAPRSAISSVSTGLHSLSTFRGLMKRRSSV
Sequence length 394
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  Aldosterone synthesis and secretion
Cortisol synthesis and secretion
Cushing syndrome
  TWIK-releated acid-sensitive K+ channel (TASK)
Phase 4 - resting membrane potential
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
26
Evidence Score: ★☆☆☆☆  Gene-disease association found in Text Mining only ★★☆☆☆  Found in Text Mining and Unknown/Other Associations ★★★☆☆  Reported in Unknown/Other Associations across ≥2 Sources ★★★★☆  ClinVar: Pathogenic/Likely Pathogenic (<5 Variants) ★★★★★  ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession Evidence Score
Pulmonary arterial hypertension Likely pathogenic rs398123042 RCV001004022
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Pulmonary hypertension, primary, 1 Pathogenic rs398123039 RCV000248489
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Pulmonary hypertension, primary, 4 Pathogenic; Likely pathogenic rs2465324094, rs1085307438, rs1553387422, rs398123039, rs398123041, rs398123042, rs398123043 RCV003159084
RCV000488684
RCV000660625
RCV000054385
RCV000054387
View all (2 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Unknown / Other Associations ClinVar entries with uncertain/conflicting evidence, and associations from other databases (OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
Phenotype Name Clinical Significance Source Evidence Score
Autism spectrum disorder Likely benign ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
CARDIOVASCULAR DISEASE GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
CEREBROVASCULAR ACCIDENT Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
CEREBROVASCULAR DISORDER GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Associations from Text Mining Disease associations identified through text mining
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
Acute Cerebrovascular Accidents Stroke CTD_human_DG 29531354
★☆☆☆☆
Found in Text Mining only
Adenocarcinoma of lung (disorder) Lung adenocarcinoma BEFREE 27294516
★☆☆☆☆
Found in Text Mining only
Adenoma Adenoma BEFREE 19878209
★☆☆☆☆
Found in Text Mining only
Atrial Fibrillation Atrial Fibrillation BEFREE 22178873, 24374141, 25437921, 25655935, 26729267, 29881975, 29930145, 31001961, 31514528
★☆☆☆☆
Found in Text Mining only
Atrial Fibrillation Atrial fibrillation Pubtator 39637865 Associate
★☆☆☆☆
Found in Text Mining only
Breast Neoplasms Breast neoplasm Pubtator 28252570 Associate
★☆☆☆☆
Found in Text Mining only
Carcinoma Basal Cell Basal cell carcinoma Pubtator 35011589 Associate
★☆☆☆☆
Found in Text Mining only
Carcinoma of lung Lung carcinoma BEFREE 27294516, 29387193
★☆☆☆☆
Found in Text Mining only
Carcinoma Squamous Cell Squamous cell carcinoma Pubtator 35676660 Associate
★☆☆☆☆
Found in Text Mining only
Cardiovascular Diseases Cardiovascular disease Pubtator 20665672 Associate
★☆☆☆☆
Found in Text Mining only