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Aliases for KCNH3 Gene

Aliases for KCNH3 Gene

  • Potassium Channel, Voltage Gated Eag Related Subfamily H, Member 3 2 3
  • BEC1 3 4 6
  • Potassium Voltage-Gated Channel, Subfamily H (Eag-Related), Member 3 2 3
  • Voltage-Gated Potassium Channel Subunit Kv12.2 3 4
  • Ether-A-Go-Go-Like Potassium Channel 2 3 4
  • Brain-Specific Eag-Like Channel 1 3 4
  • ELK Channel 2 3 4
  • ELK2 3 4
  • Potassium Voltage-Gated Channel Subfamily H Member 3 3
  • Ether-A-Go-Go K(+) Channel Family Member 3
  • KIAA1282 4
  • Kv12.2 3

External Ids for KCNH3 Gene

Previous GeneCards Identifiers for KCNH3 Gene

  • GC12P050150
  • GC12P049989
  • GC12P049649
  • GC12P048219
  • GC12P049933
  • GC12P046963

Summaries for KCNH3 Gene

GeneCards Summary for KCNH3 Gene

KCNH3 (Potassium Channel, Voltage Gated Eag Related Subfamily H, Member 3) is a Protein Coding gene. Among its related pathways are Transmission across Chemical Synapses and Dopamine-DARPP32 Feedback onto cAMP Pathway. GO annotations related to this gene include voltage-gated potassium channel activity and phosphorelay sensor kinase activity. An important paralog of this gene is KCNH1.

UniProtKB/Swiss-Prot for KCNH3 Gene

  • Pore-forming (alpha) subunit of voltage-gated potassium channel. Elicits an outward current with fast inactivation. Channel properties may be modulated by cAMP and subunit assembly

Tocris Summary for KCNH3 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 KCNH3 Gene

No data available for Entrez Gene Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for KCNH3 Gene

Genomics for KCNH3 Gene

Regulatory Elements for KCNH3 Gene

Epigenetics Products

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

Genomic Location for KCNH3 Gene

49,539,052 bp from pter
49,558,308 bp from pter
19,257 bases
Plus strand

Genomic View for KCNH3 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for KCNH3 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for KCNH3 Gene

Proteins for KCNH3 Gene

  • Protein details for KCNH3 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Potassium voltage-gated channel subfamily H member 3
    Protein Accession:
    Secondary Accessions:
    • Q9UQ06

    Protein attributes for KCNH3 Gene

    1083 amino acids
    Molecular mass:
    117129 Da
    Quaternary structure:
    • The potassium channel is probably composed of a homo- or heterotetrameric complex of pore-forming alpha subunits that can associate with modulating beta subunits
    • Sequence=BAA86596.1; Type=Erroneous initiation; Evidence={ECO:0000305};

neXtProt entry for KCNH3 Gene

Proteomics data for KCNH3 Gene at MOPED

Post-translational modifications for KCNH3 Gene

  • Glycosylation at Asn421, Asn428, and Asn436
  • Modification sites at PhosphoSitePlus

Other Protein References for KCNH3 Gene

ENSEMBL proteins:
Reactome Protein details:
REFSEQ proteins:

No data available for DME Specific Peptides for KCNH3 Gene

Domains for KCNH3 Gene

Gene Families for KCNH3 Gene

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

Suggested Antigen Peptide Sequences for KCNH3 Gene

Graphical View of Domain Structure for InterPro Entry



  • Q9ULD8
  • The segment S4 is probably the voltage-sensor and is characterized by a series of positively charged amino acids at every third position
  • Contains 1 cyclic nucleotide-binding domain.
  • Contains 1 PAC (PAS-associated C-terminal) domain.
  • Contains 1 PAS (PER-ARNT-SIM) domain.
  • Belongs to the potassium channel family. H (Eag) (TC 1.A.1.20) subfamily. Kv12.2/KCNH3 sub-subfamily.
genes like me logo Genes that share domains with KCNH3: view

Function for KCNH3 Gene

Molecular function for KCNH3 Gene

GENATLAS Biochemistry:
potassium voltage-gated channel,subfamily H (eag-related),member 3,ether-a-go-go K+ channel family member,exclusively expressed in the brain,mainly in the cerebral cortex,amygdala,hippocampus and striatum
UniProtKB/Swiss-Prot Function:
Pore-forming (alpha) subunit of voltage-gated potassium channel. Elicits an outward current with fast inactivation. Channel properties may be modulated by cAMP and subunit assembly

Gene Ontology (GO) - Molecular Function for KCNH3 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000155 phosphorelay sensor kinase activity IEA --
GO:0004871 signal transducer activity --
GO:0005216 ion channel activity --
GO:0005249 voltage-gated potassium channel activity TAS 10455180
GO:0005515 protein binding IPI 20638388
genes like me logo Genes that share ontologies with KCNH3: view

Phenotypes for KCNH3 Gene

genes like me logo Genes that share phenotypes with KCNH3: view

Animal Models for KCNH3 Gene

MGI Knock Outs for KCNH3:

Animal Model Products

miRNA for KCNH3 Gene

miRTarBase miRNAs that target KCNH3

No data available for Enzyme Numbers (IUBMB) , Transcription Factor Targeting and HOMER Transcription for KCNH3 Gene

Localization for KCNH3 Gene

Subcellular locations from UniProtKB/Swiss-Prot for KCNH3 Gene

Membrane; Multi-pass membrane protein.

Subcellular locations from

Jensen Localization Image for KCNH3 Gene COMPARTMENTS Subcellular localization image for KCNH3 gene
Compartment Confidence
plasma membrane 4
nucleus 2

Gene Ontology (GO) - Cellular Components for KCNH3 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005886 plasma membrane TAS --
GO:0005887 integral component of plasma membrane IBA --
GO:0016020 membrane --
GO:0016021 integral component of membrane NAS 10455180
genes like me logo Genes that share ontologies with KCNH3: view

Pathways for KCNH3 Gene

genes like me logo Genes that share pathways with KCNH3: view

Pathways by source for KCNH3 Gene

1 Qiagen pathway for KCNH3 Gene

PCR Array Products

  • Pathway & Disease-focused RT² Profiler PCR Arrays

Gene Ontology (GO) - Biological Process for KCNH3 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000160 phosphorelay signal transduction system IEA --
GO:0006355 regulation of transcription, DNA-templated --
GO:0006811 ion transport --
GO:0006813 potassium ion transport TAS 10455180
GO:0007165 signal transduction --
genes like me logo Genes that share ontologies with KCNH3: view

Compounds for KCNH3 Gene

(5) Tocris Compounds for KCNH3 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 KCNH3 Gene

Compound Synonyms Cas Number PubMed IDs
Cyclic AMP
  • Cyclic AMP

(1) IUPHAR Ligand for KCNH3 Gene

Ligand Type Action Affinity Pubmed IDs
Cs+ Pore Blocker Antagonist 3.8
genes like me logo Genes that share compounds with KCNH3: view

Transcripts for KCNH3 Gene

Unigene Clusters for KCNH3 Gene

Potassium voltage-gated channel, subfamily H (eag-related), member 3:
Representative Sequences:

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for KCNH3

Primer Products

Flow Cytometry Products

Alternative Splicing Database (ASD) splice patterns (SP) for KCNH3 Gene

ExUns: 1a · 1b ^ 2 ^ 3 ^ 4 ^ 5 ^ 6 ^ 7 ^ 8 ^ 9 ^ 10 ^ 11 ^ 12 ^ 13 ^ 14 ^ 15 ^ 16 ^ 17
SP1: -

Relevant External Links for KCNH3 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for KCNH3 Gene

mRNA expression in normal human tissues for KCNH3 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for KCNH3 Gene

This gene is overexpressed in Brain - Cortex (9.6), Brain - Frontal Cortex (BA9) (6.5), Brain - Anterior cingulate cortex (BA24) (5.8), Brain - Amygdala (4.9), and Brain - Hippocampus (4.9).

Protein differential expression in normal tissues for KCNH3 Gene

This gene is overexpressed in Colon (69.0).

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, and MOPED for KCNH3 Gene

SOURCE GeneReport for Unigene cluster for KCNH3 Gene Hs.64064

mRNA Expression by UniProt/SwissProt for KCNH3 Gene

Tissue specificity: Detected only in brain, in particular in the telencephalon. Detected in the cerebral cortex, occipital pole, frontal and temporal lobe, putamen, amygdala, hippocampus and caudate nucleus
genes like me logo Genes that share expressions with KCNH3: view

Expression partners for KCNH3 Gene

In Situ Assay Products

Orthologs for KCNH3 Gene

This gene was present in the common ancestor of animals.

Orthologs for KCNH3 Gene

Organism Taxonomy Gene Similarity Type Details
(Bos Taurus)
Mammalia KCNH3 35
  • 92.3 (n)
  • 95.9 (a)
KCNH3 36
  • 96 (a)
(Canis familiaris)
Mammalia KCNH3 35
  • 90.77 (n)
  • 94.22 (a)
KCNH3 36
  • 94 (a)
(Mus musculus)
Mammalia Kcnh3 35
  • 89.6 (n)
  • 95.57 (a)
Kcnh3 16
Kcnh3 36
  • 95 (a)
(Pan troglodytes)
Mammalia KCNH3 35
  • 99.63 (n)
  • 99.72 (a)
KCNH3 36
  • 100 (a)
(Rattus norvegicus)
Mammalia Kcnh3 35
  • 89.1 (n)
  • 95.38 (a)
(Ornithorhynchus anatinus)
Mammalia -- 36
  • 68 (a)
(Anolis carolinensis)
Reptilia KCNH3 36
  • 68 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia LOC100492237 35
  • 61.54 (n)
  • 63.36 (a)
(Danio rerio)
Actinopterygii LOC100006614 35
  • 63.85 (n)
  • 62.8 (a)
kcnh3 36
  • 58 (a)
fruit fly
(Drosophila melanogaster)
Insecta elk 37
  • 48 (a)
elk 36
  • 33 (a)
sea squirt
(Ciona savignyi)
Ascidiacea -- 36
  • 48 (a)
Species with no ortholog for KCNH3:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • 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)
  • chicken (Gallus gallus)
  • 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)
  • oppossum (Monodelphis domestica)
  • 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 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)
  • worm (Caenorhabditis elegans)

Evolution for KCNH3 Gene

Gene Tree for KCNH3 (if available)
Gene Tree for KCNH3 (if available)

Paralogs for KCNH3 Gene

Selected SIMAP similar genes for KCNH3 Gene using alignment to 2 proteins:

genes like me logo Genes that share paralogs with KCNH3: view

Variants for KCNH3 Gene

Sequence variations from dbSNP and Humsavar for KCNH3 Gene

SNP ID Clin Chr 12 pos Sequence Context AA Info Type MAF
rs933738 -- 49,549,339(-) AGGCC(C/T)GAAGG intron-variant
rs1143872 -- 49,546,038(-) TGTCT(C/T)AGCCC intron-variant
rs1150056 -- 49,538,084(-) TGCCC(G/T)GGGGC upstream-variant-2KB
rs1150057 -- 49,544,030(-) AGCGC(C/T)GCGAT reference, synonymous-codon
rs1150058 -- 49,544,129(-) CGGGC(C/T)GGCCC intron-variant

Structural Variations from Database of Genomic Variants (DGV) for KCNH3 Gene

Variant ID Type Subtype PubMed ID
nsv899070 CNV Loss 21882294
nsv832406 CNV Loss 17160897
nsv899071 CNV Loss 21882294

Relevant External Links for KCNH3 Gene

HapMap Linkage Disequilibrium report

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for KCNH3 Gene

Disorders for KCNH3 Gene

Relevant External Links for KCNH3

Genetic Association Database (GAD)

No disorders were found for KCNH3 Gene.

No data available for MalaCards , OMIM , UniProtKB/Swiss-Prot , University of Copenhagen DISEASES , Novoseek inferred disease relationships and Genatlas for KCNH3 Gene

Publications for KCNH3 Gene

  1. New ether-a-go-go K+ channel family members localized in human telencephalon. (PMID: 10455180) Miyake A. … Furuichi K. (J. Biol. Chem. 1999) 2 3 4 23
  2. Prediction of the coding sequences of unidentified human genes. XV. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro. (PMID: 10574462) Nagase T. … Ohara O. (DNA Res. 1999) 3 4
  3. International Union of Pharmacology. LIII. Nomenclature and molecular relationships of voltage-gated potassium channels. (PMID: 16382104) Gutman G.A. … Wang X. (Pharmacol. Rev. 2005) 2 3
  4. Disruption of the ether-a-go-go K+ channel gene BEC1/KCNH3 enhances cognitive function. (PMID: 19923296) Miyake A. … Katou M. (J. Neurosci. 2009) 3
  5. Interaction of human immunodeficiency virus gp120 with the voltage-gated potassium channel BEC1. (PMID: 20638388) Herrmann M. … Mueller-Lantzsch N. (FEBS Lett. 2010) 3

Products for KCNH3 Gene

Sources for KCNH3 Gene

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