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Aliases for KCNA3 Gene

Aliases for KCNA3 Gene

  • Potassium Channel, Voltage Gated Shaker Related Subfamily A, Member 3 2 3
  • Potassium Voltage-Gated Channel, Shaker-Related Subfamily, Member 3 2 3
  • Voltage-Gated Potassium Channel Subunit Kv1.3 3 4
  • Voltage-Gated K(+) Channel HuKIII 3 4
  • HPCN3 3 4
  • HGK5 3 4
  • HLK3 3 4
  • Potassium Voltage-Gated Channel Subfamily A Member 3 3
  • Voltage-Gated Potassium Channel Protein Kv1.3 3
  • Type N Potassium Channel 3
  • Potassium Channel 3 3
  • HUKIII 3
  • KV1.3 3
  • PCN3 3
  • MK3 3

External Ids for KCNA3 Gene

Previous GeneCards Identifiers for KCNA3 Gene

  • GC01M111630
  • GC01M110080
  • GC01M110316
  • GC01M110513
  • GC01M110926
  • GC01M111015
  • GC01M111214
  • GC01M109085

Summaries for KCNA3 Gene

Entrez Gene Summary for KCNA3 Gene

  • Potassium channels represent the most complex class of voltage-gated ion channels from both functional and structural standpoints. Their diverse functions include regulating neurotransmitter release, heart rate, insulin secretion, neuronal excitability, epithelial electrolyte transport, smooth muscle contraction, and cell volume. Four sequence-related potassium channel genes - shaker, shaw, shab, and shal - have been identified in Drosophila, and each has been shown to have human homolog(s). This gene encodes a member of the potassium channel, voltage-gated, shaker-related subfamily. This member contains six membrane-spanning domains with a shaker-type repeat in the fourth segment. It belongs to the delayed rectifier class, members of which allow nerve cells to efficiently repolarize following an action potential. It plays an essential role in T-cell proliferation and activation. This gene appears to be intronless and it is clustered together with KCNA2 and KCNA10 genes on chromosome 1. [provided by RefSeq, Jul 2008]

GeneCards Summary for KCNA3 Gene

KCNA3 (Potassium Channel, Voltage Gated Shaker Related Subfamily A, Member 3) is a Protein Coding gene. Diseases associated with KCNA3 include pancreas adenocarcinoma and autoimmune pancreatitis. Among its related pathways are Transmission across Chemical Synapses and BDNF signaling pathway. GO annotations related to this gene include delayed rectifier potassium channel activity and outward rectifier potassium channel activity. An important paralog of this gene is KCNA10.

UniProtKB/Swiss-Prot for KCNA3 Gene

  • Mediates the voltage-dependent potassium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient

Tocris Summary for KCNA3 Gene

  • Voltage-gated potassium channels (KV) belong to the 6-TM family of potassium channel that also comprises the Ca2+-activated Slo (actually 7-TM) and the Ca2+-activated SK subfamilies. The pore-forming alpha-subunits contain a single pore-forming region and combine to form tetramers. Heteromeric channels can be formed within subfamilies e.g. KV1.1 with KV1.2 and KCNQ2 with KCNQ3.

Gene Wiki entry for KCNA3 Gene

No data available for PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for KCNA3 Gene

Genomics for KCNA3 Gene

Regulatory Elements for KCNA3 Gene

Epigenetics Products

  • DNA Methylation CpG Assay Predesigned for Pyrosequencing in human,mouse,rat

Genomic Location for KCNA3 Gene

110,653,560 bp from pter
110,675,033 bp from pter
21,474 bases
Minus strand

Genomic View for KCNA3 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for KCNA3 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for KCNA3 Gene

Proteins for KCNA3 Gene

  • Protein details for KCNA3 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Potassium voltage-gated channel subfamily A member 3
    Protein Accession:
    Secondary Accessions:
    • Q5VWN2

    Protein attributes for KCNA3 Gene

    575 amino acids
    Molecular mass:
    63842 Da
    Quaternary structure:
    • Heterotetramer of potassium channel proteins. Binds PDZ domains of DLG1, DLG2 and DLG4 (By similarity).
    • Sequence=AAA36425.1; Type=Erroneous initiation; Note=Translation N-terminally extended.; Evidence={ECO:0000305}; Sequence=AAA36425.1; Type=Frameshift; Positions=42; Evidence={ECO:0000305}; Sequence=AAA59457.1; Type=Erroneous initiation; Note=Translation N-terminally extended.; Evidence={ECO:0000305}; Sequence=AAA59457.1; Type=Frameshift; Positions=Several; Evidence={ECO:0000305}; Sequence=AAB88073.1; Type=Erroneous initiation; Evidence={ECO:0000305}; Sequence=AAC31761.1; Type=Erroneous initiation; Note=Translation N-terminally extended.; Evidence={ECO:0000305}; Sequence=AAC31761.1; Type=Frameshift; Positions=Several; Evidence={ECO:0000305};

    Three dimensional structures from OCA and Proteopedia for KCNA3 Gene

neXtProt entry for KCNA3 Gene

Proteomics data for KCNA3 Gene at MOPED

Post-translational modifications for KCNA3 Gene

Other Protein References for KCNA3 Gene

ENSEMBL proteins:
Reactome Protein details:
REFSEQ proteins:

No data available for DME Specific Peptides for KCNA3 Gene

Domains for KCNA3 Gene

Gene Families for KCNA3 Gene

  • KCN :Potassium channels
  • Kv :Voltage-gated ion channels / Potassium channels

Suggested Antigen Peptide Sequences for KCNA3 Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry



  • P22001
  • The N-terminus may be important in determining the rate of inactivation of the channel while the tail may play a role in modulation of channel activity and/or targeting of the channel to specific subcellular compartments
  • The segment S4 is probably the voltage-sensor and is characterized by a series of positively charged amino acids at every third position
  • Belongs to the potassium channel family. A (Shaker) (TC 1.A.1.2) subfamily. Kv1.3/KCNA3 sub-subfamily.
genes like me logo Genes that share domains with KCNA3: view

Function for KCNA3 Gene

Molecular function for KCNA3 Gene

GENATLAS Biochemistry: potassium voltage-gated channel,Drosophila shaker-related subfamily,member 3,T cell (mouse Kv1.3 homolog)
UniProtKB/Swiss-Prot Function: Mediates the voltage-dependent potassium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient

Gene Ontology (GO) - Molecular Function for KCNA3 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005216 ion channel activity --
GO:0005244 voltage-gated ion channel activity TAS 1373731
GO:0005251 delayed rectifier potassium channel activity IBA --
GO:0005515 protein binding --
GO:0015271 outward rectifier potassium channel activity IEA --
genes like me logo Genes that share ontologies with KCNA3: view
genes like me logo Genes that share phenotypes with KCNA3: view

Animal Models for KCNA3 Gene

MGI Knock Outs for KCNA3:

Animal Model Products

CRISPR Products

No data available for Enzyme Numbers (IUBMB) , miRNA , Transcription Factor Targeting and HOMER Transcription for KCNA3 Gene

Localization for KCNA3 Gene

Subcellular locations from UniProtKB/Swiss-Prot for KCNA3 Gene

Cell membrane; Multi-pass membrane protein.

Subcellular locations from

Jensen Localization Image for KCNA3 Gene COMPARTMENTS Subcellular localization image for KCNA3 gene
Compartment Confidence
plasma membrane 4
mitochondrion 1
peroxisome 1

Gene Ontology (GO) - Cellular Components for KCNA3 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005886 plasma membrane TAS --
GO:0008076 voltage-gated potassium channel complex IEA --
GO:0016020 membrane --
GO:0016021 integral component of membrane IBA --
GO:0045121 membrane raft IEA --
genes like me logo Genes that share ontologies with KCNA3: view

Pathways for KCNA3 Gene

genes like me logo Genes that share pathways with KCNA3: view

Pathways by source for KCNA3 Gene

1 Qiagen pathway for KCNA3 Gene
1 BioSystems pathway for KCNA3 Gene

Gene Ontology (GO) - Biological Process for KCNA3 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0006811 ion transport --
GO:0006813 potassium ion transport TAS 1373731
GO:0007268 synaptic transmission TAS --
GO:0034765 regulation of ion transmembrane transport IEA --
GO:0051260 protein homooligomerization IEA --
genes like me logo Genes that share ontologies with KCNA3: view

Compounds for KCNA3 Gene

(5) Tocris Compounds for KCNA3 Gene

Compound Action Cas Number
4-Aminopyridine Non-selective KV channel blocker [504-24-5]
E-4031 dihydrochloride KV11.1 (hERG) channel blocker; inhibits rapid delayed rectifier K+ current (IKr) [113559-13-0]
Margatoxin Potent KV1.3 channel blocker [145808-47-5]
MaxiPost Potassium channel modulator; exerts subtype-specific effects [187523-35-9]
XE 991 dihydrochloride Potent, selective KV7 (KCNQ) channel blocker; blocks M-currents [122955-13-9]

(1) HMDB Compounds for KCNA3 Gene

Compound Synonyms Cas Number PubMed IDs
  • K+

(5) IUPHAR Ligand for KCNA3 Gene

Ligand Type Action Affinity Pubmed IDs
correolide Pore Blocker None 8
margatoxin Inhibitor None
charybdotoxin Inhibitor None
noxiustoxin Inhibitor None
tetraethylammonium Inhibitor None

(2) Novoseek inferred chemical compound relationships for KCNA3 Gene

Compound -log(P) Hits PubMed IDs
potassium 67.6 13
charybdotoxin 56.5 1
genes like me logo Genes that share compounds with KCNA3: view

Transcripts for KCNA3 Gene

mRNA/cDNA for KCNA3 Gene

(4) Additional mRNA sequences :
(21) Selected AceView cDNA sequences:
(1) REFSEQ mRNAs :
(1) Ensembl transcripts including schematic representations, and UCSC links where relevant :

Unigene Clusters for KCNA3 Gene

Potassium voltage-gated channel, shaker-related subfamily, member 3:
Representative Sequences:

CRISPR Products

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for KCNA3

Primer Products

Flow Cytometry Products

Alternative Splicing Database (ASD) splice patterns (SP) for KCNA3 Gene

No ASD Table

Relevant External Links for KCNA3 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for KCNA3 Gene

mRNA expression in normal human tissues for KCNA3 Gene

mRNA differential expression in normal tissues according to GTEx for KCNA3 Gene

This gene is overexpressed in Whole Blood (8.3).

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, MOPED, and MaxQB for KCNA3 Gene

SOURCE GeneReport for Unigene cluster for KCNA3 Gene Hs.169948

genes like me logo Genes that share expressions with KCNA3: view

In Situ Assay Products

No data available for mRNA expression in embryonic tissues and stem cells from LifeMap Discovery and mRNA Expression by UniProt/SwissProt for KCNA3 Gene

Orthologs for KCNA3 Gene

This gene was present in the common ancestor of animals.

Orthologs for KCNA3 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia KCNA3 35
  • 99.59 (n)
  • 99.3 (a)
KCNA3 36
  • 99 (a)
(Bos Taurus)
Mammalia KCNA3 35
  • 92.12 (n)
  • 95.13 (a)
KCNA3 36
  • 95 (a)
(Canis familiaris)
Mammalia KCNA3 35
  • 91.05 (n)
  • 95.14 (a)
KCNA3 36
  • 95 (a)
(Mus musculus)
Mammalia Kcna3 35
  • 89.74 (n)
  • 96.18 (a)
Kcna3 16
Kcna3 36
  • 97 (a)
(Monodelphis domestica)
Mammalia KCNA3 36
  • 90 (a)
(Ornithorhynchus anatinus)
Mammalia KCNA3 36
  • 85 (a)
(Rattus norvegicus)
Mammalia Kcna3 35
  • 90.31 (n)
  • 96.37 (a)
(Gallus gallus)
Aves CKV1.1 36
  • 84 (a)
KCNA3 35
  • 76.26 (n)
  • 83.63 (a)
(Anolis carolinensis)
Reptilia KCNA3 36
  • 76 (a)
African clawed frog
(Xenopus laevis)
Amphibia kcna3b-A-prov 35
tropical clawed frog
(Silurana tropicalis)
Amphibia kcna1 35
  • 75.6 (n)
  • 84.98 (a)
(Danio rerio)
Actinopterygii KCNA3 (1 of 2) 36
  • 86 (a)
KCNA3 (2 of 2) 36
  • 86 (a)
LOC100330283 35
  • 73.41 (n)
  • 84.05 (a)
African malaria mosquito
(Anopheles gambiae)
Insecta AgaP_AGAP000254 35
  • 61.83 (n)
  • 73.27 (a)
fruit fly
(Drosophila melanogaster)
Insecta Sh 35
  • 60.57 (n)
  • 73.15 (a)
Sh 37
  • 70 (a)
(Caenorhabditis elegans)
Secernentea shk-1 35
  • 53.35 (n)
  • 50.13 (a)
Y55F3C.3 37
  • 30 (a)
Species with no ortholog for KCNA3:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)

Evolution for KCNA3 Gene

Gene Tree for KCNA3 (if available)
Gene Tree for KCNA3 (if available)

Paralogs for KCNA3 Gene

Selected SIMAP similar genes for KCNA3 Gene using alignment to 1 proteins:

genes like me logo Genes that share paralogs with KCNA3: view

Variants for KCNA3 Gene

Sequence variations from dbSNP and Humsavar for KCNA3 Gene

SNP ID Clin Chr 01 pos Sequence Context AA Info Type MAF
rs361501 -- 110,674,606(-) GCCGA(C/T)GGTGG synonymous-codon, reference, upstream-variant-2KB
rs1058184 -- 110,672,850(-) TCTCT(G/T)AACAT utr-variant-3-prime, intron-variant, upstream-variant-2KB
rs1058185 -- 110,672,687(-) TCAAT(C/T)CGTAG utr-variant-3-prime, intron-variant, upstream-variant-2KB
rs1058186 -- 110,672,621(-) GGTGT(C/G)CCTAC utr-variant-3-prime, intron-variant, upstream-variant-2KB
rs1156237 -- 110,668,587(-) TATTT(C/T)TAAAC intron-variant

Relevant External Links for KCNA3 Gene

HapMap Linkage Disequilibrium report
Human Gene Mutation Database (HGMD)

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot and Structural Variations from Database of Genomic Variants (DGV) for KCNA3 Gene

Disorders for KCNA3 Gene

MalaCards: The human disease database

MalaCards: The human disease database. (3) Diseases for KCNA3 Gene including...

Search for KCNA3 Gene in MalaCards »

Relevant External Links for KCNA3

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
genes like me logo Genes that share disorders with KCNA3: view

No data available for UniProtKB/Swiss-Prot for KCNA3 Gene

Publications for KCNA3 Gene

  1. Confirmation of the assignment of the gene encoding Kv1.3, a voltage- gated potassium channel (KCNA3) to the proximal short arm of human chromosome 1. (PMID: 7829094) Folander K. … Swanson R. (Genomics 1994) 3 4 23
  2. A new variant in the human Kv1.3 gene is associated with low insulin sensitivity and impaired glucose tolerance. (PMID: 16317062) Tschritter O. … Fritsche A. (J. Clin. Endocrinol. Metab. 2006) 3 23 48
  3. Methyl-beta-cyclodextrin reversibly alters the gating of lipid rafts-associated Kv1.3 channels in Jurkat T lymphocytes. (PMID: 17242956) Pottosin I.I. … Dobrovinskaya O.R. (Pflugers Arch. 2007) 3 23
  4. The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). (PMID: 15489334) Gerhard D.S. … Malek J. (Genome Res. 2004) 3 4
  5. Cloning, functional expression, and regulation of two K+ channels in human T lymphocytes. (PMID: 1373731) Attali B. … Lazdunski M. (J. Biol. Chem. 1992) 3 4

Products for KCNA3 Gene

Sources for KCNA3 Gene

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