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Aliases for KCNH8 Gene

Aliases for KCNH8 Gene

  • Potassium Channel, Voltage Gated Eag Related Subfamily H, Member 8 2 3
  • Potassium Voltage-Gated Channel, Subfamily H (Eag-Related), Member 8 2 3
  • Voltage-Gated Potassium Channel Subunit Kv12.1 3 4
  • Ether-A-Go-Go-Like Potassium Channel 3 3 4
  • ELK Channel 3 3 4
  • HElk1 3 4
  • ELK1 3 4
  • Elk3 3 4
  • Potassium Voltage-Gated Channel Subfamily H Member 8 3
  • Ether-A-Go-Go-Like Potassium Channel 1 3
  • Kv12.1 3
  • ELK 3

External Ids for KCNH8 Gene

Previous GeneCards Identifiers for KCNH8 Gene

  • GC03P018574
  • GC03P018804
  • GC03P019040

Summaries for KCNH8 Gene

Entrez Gene Summary for KCNH8 Gene

  • Voltage-gated potassium (Kv) 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. This gene encodes a member of the potassium channel, voltage-gated, subfamily H. This member is a pore-forming (alpha) subunit. [provided by RefSeq, Jul 2008]

GeneCards Summary for KCNH8 Gene

KCNH8 (Potassium Channel, Voltage Gated Eag Related Subfamily H, Member 8) is a Protein Coding gene. Among its related pathways are Signaling by FGFR and Signaling by FGFR. 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 KCNH8 Gene

  • Pore-forming (alpha) subunit of voltage-gated potassium channel. Elicits a slowly activating, outward rectifying current. Channel properties may be modulated by cAMP and subunit assembly

Tocris Summary for KCNH8 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 KCNH8 Gene

No data available for PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for KCNH8 Gene

Genomics for KCNH8 Gene

Epigenetics Products

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

Genomic Location for KCNH8 Gene

19,148,454 bp from pter
19,535,646 bp from pter
387,193 bases
Plus strand

Genomic View for KCNH8 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for KCNH8 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for KCNH8 Gene

Proteins for KCNH8 Gene

  • Protein details for KCNH8 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Potassium voltage-gated channel subfamily H member 8
    Protein Accession:
    Secondary Accessions:
    • B7Z2I7
    • Q59GQ6

    Protein attributes for KCNH8 Gene

    1107 amino acids
    Molecular mass:
    123804 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

    Alternative splice isoforms for KCNH8 Gene


neXtProt entry for KCNH8 Gene

Proteomics data for KCNH8 Gene at MOPED

Post-translational modifications for KCNH8 Gene

  • Glycosylation at Asn320 and Asn409
  • Modification sites at PhosphoSitePlus

Other Protein References for KCNH8 Gene

ENSEMBL proteins:
Reactome Protein details:
REFSEQ proteins:

No data available for DME Specific Peptides for KCNH8 Gene

Domains for KCNH8 Gene

Gene Families for KCNH8 Gene

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

Graphical View of Domain Structure for InterPro Entry



  • Q96L42
  • 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. Kv12.1/KCNH8 sub-subfamily.
genes like me logo Genes that share domains with KCNH8: view

Function for KCNH8 Gene

Molecular function for KCNH8 Gene

UniProtKB/Swiss-Prot Function: Pore-forming (alpha) subunit of voltage-gated potassium channel. Elicits a slowly activating, outward rectifying current. Channel properties may be modulated by cAMP and subunit assembly

Gene Ontology (GO) - Molecular Function for KCNH8 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0000155 phosphorelay sensor kinase activity IEA --
GO:0000166 nucleotide binding --
GO:0004871 signal transducer activity --
GO:0005216 ion channel activity --
GO:0005249 voltage-gated potassium channel activity IBA --
genes like me logo Genes that share ontologies with KCNH8: view

Phenotypes for KCNH8 Gene

genes like me logo Genes that share phenotypes with KCNH8: view

Animal Model Products

CRISPR Products

miRNA for KCNH8 Gene

miRTarBase miRNAs that target KCNH8

miRNA Products

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for KCNH8

In Situ Assay Products

Flow Cytometry Products

No data available for Enzyme Numbers (IUBMB) , Animal Models , Transcription Factor Targeting and HOMER Transcription for KCNH8 Gene

Localization for KCNH8 Gene

Subcellular locations from UniProtKB/Swiss-Prot for KCNH8 Gene

Membrane; Multi-pass membrane protein.

Subcellular locations from

Jensen Localization Image for KCNH8 Gene COMPARTMENTS Subcellular localization image for KCNH8 gene
Compartment Confidence
plasma membrane 4
cytosol 2

Gene Ontology (GO) - Cellular Components for KCNH8 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 --
genes like me logo Genes that share ontologies with KCNH8: view

Pathways for KCNH8 Gene

genes like me logo Genes that share pathways with KCNH8: view

Interacting Proteins for KCNH8 Gene

Gene Ontology (GO) - Biological Process for KCNH8 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:0007165 signal transduction --
GO:0007268 synaptic transmission TAS --
genes like me logo Genes that share ontologies with KCNH8: view

Compounds for KCNH8 Gene

(5) Tocris Compounds for KCNH8 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 KCNH8 Gene

Compound Synonyms Cas Number PubMed IDs
Cyclic AMP
  • Cyclic AMP

(1) IUPHAR Ligand for KCNH8 Gene

Ligand Type Action Affinity Pubmed IDs
Ba2+ Pore Blocker Antagonist

(1) Novoseek inferred chemical compound relationships for KCNH8 Gene

Compound -log(P) Hits PubMed IDs
potassium 27 1
genes like me logo Genes that share compounds with KCNH8: view

Transcripts for KCNH8 Gene

mRNA/cDNA for KCNH8 Gene

(6) REFSEQ mRNAs :
(9) Selected AceView cDNA sequences:
(6) Additional mRNA sequences :
(3) Ensembl transcripts including schematic representations, and UCSC links where relevant :

Unigene Clusters for KCNH8 Gene

Potassium voltage-gated channel, subfamily H (eag-related), member 8:
Representative Sequences:

CRISPR Products

miRNA Products

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for KCNH8

Primer Products

  • OriGene qSTAR qPCR primer pairs in human,mouse,rat for KCNH8

Flow Cytometry Products

Alternative Splicing Database (ASD) splice patterns (SP) for KCNH8 Gene

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

Relevant External Links for KCNH8 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for KCNH8 Gene

mRNA expression in normal human tissues for KCNH8 Gene

mRNA differential expression in normal tissues according to GTEx for KCNH8 Gene

This gene is overexpressed in Brain - Putamen (basal ganglia) (5.2), Pituitary (5.2), Brain - Hippocampus (5.0), Brain - Substantia nigra (4.9), and Brain - Amygdala (4.4).

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, and MOPED for KCNH8 Gene

SOURCE GeneReport for Unigene cluster for KCNH8 Gene Hs.475656

mRNA Expression by UniProt/SwissProt for KCNH8 Gene

Tissue specificity: Primarily expressed in the nervous system.
genes like me logo Genes that share expressions with KCNH8: view

In Situ Assay Products

No data available for mRNA expression in embryonic tissues and stem cells from LifeMap Discovery for KCNH8 Gene

Orthologs for KCNH8 Gene

This gene was present in the common ancestor of animals.

Orthologs for KCNH8 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia KCNH8 35
  • 99.7 (n)
  • 99.46 (a)
KCNH8 36
  • 99 (a)
(Bos Taurus)
Mammalia KCNH8 35
  • 85.65 (n)
  • 89.74 (a)
KCNH8 36
  • 90 (a)
(Canis familiaris)
Mammalia KCNH8 35
  • 92.32 (n)
  • 95.93 (a)
KCNH8 36
  • 96 (a)
(Mus musculus)
Mammalia Kcnh8 35
  • 86.95 (n)
  • 92.64 (a)
Kcnh8 16
Kcnh8 36
  • 93 (a)
(Monodelphis domestica)
Mammalia KCNH8 36
  • 89 (a)
(Ornithorhynchus anatinus)
Mammalia KCNH8 36
  • 87 (a)
(Rattus norvegicus)
Mammalia Kcnh8 35
  • 86.59 (n)
  • 92.46 (a)
(Gallus gallus)
Aves KCNH8 35
  • 78.96 (n)
  • 84.27 (a)
KCNH8 36
  • 84 (a)
(Anolis carolinensis)
Reptilia KCNH8 36
  • 83 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia kcnh8 35
  • 72.66 (n)
  • 75.77 (a)
(Danio rerio)
Actinopterygii kcnh8 35
  • 67.2 (n)
  • 72.89 (a)
kcnh8 36
  • 67 (a)
fruit fly
(Drosophila melanogaster)
Insecta elk 36
  • 37 (a)
sea squirt
(Ciona savignyi)
Ascidiacea -- 36
  • 50 (a)
Species with no ortholog for KCNH8:
  • 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)
  • 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 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 KCNH8 Gene

Gene Tree for KCNH8 (if available)
Gene Tree for KCNH8 (if available)

Paralogs for KCNH8 Gene

Selected SIMAP similar genes for KCNH8 Gene using alignment to 3 proteins:

genes like me logo Genes that share paralogs with KCNH8: view

Variants for KCNH8 Gene

Sequence variations from dbSNP and Humsavar for KCNH8 Gene

SNP ID Clin Chr 03 pos Sequence Context AA Info Type MAF
rs17054 -- 19,180,565(-) TGCCC(A/G/T)AAATA intron-variant
rs727139 -- 19,293,203(-) TACCC(C/T)GTCTC intron-variant
rs730586 -- 19,347,107(+) TGTCA(A/G)AGTGC intron-variant
rs951678 -- 19,529,498(-) TCATA(G/T)CATGG intron-variant
rs956379 -- 19,329,335(+) TTTAT(C/G)TTTGC intron-variant

Structural Variations from Database of Genomic Variants (DGV) for KCNH8 Gene

Variant ID Type Subtype PubMed ID
nsv517847 CNV Gain 19592680
esv1965258 CNV Deletion 18987734
esv2724996 CNV Deletion 23290073
esv2724997 CNV Deletion 23290073
nsv524040 CNV Loss 19592680
esv2657193 CNV Deletion 23128226
nsv3717 CNV Insertion 18451855
nsv876595 CNV Loss 21882294
nsv3718 CNV Loss 18451855
esv23068 CNV Gain+Loss 19812545
nsv433358 CNV Gain 18776910
esv35078 CNV Gain 17911159

Relevant External Links for KCNH8 Gene

HapMap Linkage Disequilibrium report

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for KCNH8 Gene

Disorders for KCNH8 Gene

Relevant External Links for KCNH8

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
genes like me logo Genes that share disorders with KCNH8: view

No data available for UniProtKB/Swiss-Prot for KCNH8 Gene

Publications for KCNH8 Gene

  1. Distribution and functional properties of human KCNH8 (Elk1) potassium channels. (PMID: 12890647) Zou A. … Wickenden A.D. (Am. J. Physiol. 2003) 3 4 23
  2. A novel membrane potential-sensitive fluorescent dye improves cell- based assays for ion channels. (PMID: 11897058) Baxter D.F. … Xie Y. (J. Biomol. Screen. 2002) 3 4
  3. Variation at the NFATC2 locus increases the risk of thiazolidinedione-induced edema in the Diabetes REduction Assessment with ramipril and rosiglitazone Medication (DREAM) study. (PMID: 20628086) Bailey S.D. … Anand S. (Diabetes Care 2010) 3 48
  4. 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
  5. Genome-wide association with bone mass and geometry in the Framingham Heart Study. (PMID: 17903296) Kiel D.P. … Karasik D. (BMC Med. Genet. 2007) 3 48

Products for KCNH8 Gene

Sources for KCNH8 Gene

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