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Potassium channel, voltage gated eag related subfamily H, member 1
Symbols KCNH1 ; EAG; EAG1; Kv10.1; TMBTS; h-eag
External IDs OMIM603305 MGI1341721 HomoloGene68242 IUPHAR: 570 ChEMBL: 3841 GeneCards: KCNH1 Gene
RNA expression pattern
PBB GE KCNH1 207635 s at tn.png
More reference expression data
Species Human Mouse
Entrez 3756 16510
Ensembl ENSG00000143473 ENSMUSG00000058248
UniProt O95259 Q60603
RefSeq (mRNA) NM_002238 NM_001038607
RefSeq (protein) NP_002229 NP_001033696
Location (UCSC) Chr 1:
210.68 – 211.13 Mb
Chr 1:
192.19 – 192.51 Mb
PubMed search [1] [2]

Potassium voltage-gated channel subfamily H member 1 is a protein that in humans is encoded by the KCNH1 gene.[1][2][3]

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 of a voltage-gated non-inactivating delayed rectifier potassium channel. It is activated at the onset of myoblast differentiation. The gene is highly expressed in brain and in myoblasts. Overexpression of the gene may confer a growth advantage to cancer cells and favor tumor cell proliferation. Alternative splicing of this gene results in two transcript variants encoding distinct isoforms.[3]


KCNH1 has been shown to interact with KCNB1.[4]

See also[edit]


  1. ^ Occhiodoro T, Bernheim L, Liu JH, Bijlenga P, Sinnreich M, Bader CR, Fischer-Lougheed J (Sep 1998). "Cloning of a human ether-a-go-go potassium channel expressed in myoblasts at the onset of fusion". FEBS Lett 434 (1–2): 177–82. doi:10.1016/S0014-5793(98)00973-9. PMID 9738473. 
  2. ^ Gutman GA, Chandy KG, Grissmer S, Lazdunski M, McKinnon D, Pardo LA, Robertson GA, Rudy B, Sanguinetti MC, Stuhmer W, Wang X (Dec 2005). "International Union of Pharmacology. LIII. Nomenclature and molecular relationships of voltage-gated potassium channels". Pharmacol Rev 57 (4): 473–508. doi:10.1124/pr.57.4.10. PMID 16382104. 
  3. ^ a b "Entrez Gene: KCNH1 potassium voltage-gated channel, subfamily H (eag-related), member 1". 
  4. ^ Ottschytsch, N; Raes A; Van Hoorick D; Snyders D J (Jun 2002). "Obligatory heterotetramerization of three previously uncharacterized Kv channel α-subunits identified in the human genome". Proc. Natl. Acad. Sci. U.S.A. (United States) 99 (12): 7986–91. doi:10.1073/pnas.122617999. ISSN 0027-8424. PMC 123007. PMID 12060745. 

Further reading[edit]

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This article incorporates text from the United States National Library of Medicine, which is in the public domain.