HCN1

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Hyperpolarization activated cyclic nucleotide-gated potassium channel 1

PDB rendering based on 1q3e.

Available structures
PDB	1q3e, 1q43, 1q5o

Identifiers

Symbols

HCN1; BCNG-1; BCNG1; HAC-2

External IDs

OMIM: 602780 MGI: 1096392 HomoloGene: 32093 GeneCards: HCN1 Gene

Gene Ontology
Molecular function	• nucleotide binding • voltage-gated ion channel activity • voltage-gated potassium channel activity • potassium channel activity • sodium channel activity • cAMP binding
Cellular component	• membrane • integral to membrane • axon • dendrite
Biological process	• ion transport • potassium ion transport • apical protein localization • transmembrane transport • potassium ion transmembrane transport
Sources: Amigo / QuickGO

RNA expression pattern

More reference expression data

Orthologs

Species

Human

Mouse

RefSeq (mRNA)

RefSeq (protein)

Location (UCSC)

Chr 5:
45.26 – 45.7 Mb

Chr 13:
118.39 – 118.77 Mb

PubMed search

[1]

[2]

Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 1 is a protein that in humans is encoded by the HCN1 gene.^[1]^[2]^[3]^[4]

Hyperpolarization-activated cation channels of the HCN gene family, such as HCN1, contribute to spontaneous rhythmic activity in both heart and brain.[supplied by OMIM]^[4]

1 Interactions
2 See also
3 References
4 Further reading
5 External links

Interactions

HCN1 has been shown to interact with HCN2.^[5]^[6]

References

^ Santoro B, Grant SG, Bartsch D, Kandel ER (Feb 1998). "Interactive cloning with the SH3 domain of N-src identifies a new brain specific ion channel protein, with homology to eag and cyclic nucleotide-gated channels". Proc Natl Acad Sci U S A 94 (26): 14815–20. doi:10.1073/pnas.94.26.14815. PMC 25120. PMID 9405696. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=25120.
^ Santoro B, Liu DT, Yao H, Bartsch D, Kandel ER, Siegelbaum SA, Tibbs GR (Jul 1998). "Identification of a gene encoding a hyperpolarization-activated pacemaker channel of brain". Cell 93 (5): 717–29. doi:10.1016/S0092-8674(00)81434-8. PMID 9630217.
^ Hofmann F, Biel M, Kaupp UB (Dec 2005). "International Union of Pharmacology. LI. Nomenclature and structure-function relationships of cyclic nucleotide-regulated channels". Pharmacol Rev 57 (4): 455–62. doi:10.1124/pr.57.4.8. PMID 16382102.
^ ^a ^b "Entrez Gene: HCN1 hyperpolarization activated cyclic nucleotide-gated potassium channel 1". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=348980.
^ Much, Barbara; Wahl-Schott Christian, Zong Xiangang, Schneider Angela, Baumann Ludwig, Moosmang Sven, Ludwig Andreas, Biel Martin (Oct. 2003). "Role of subunit heteromerization and N-linked glycosylation in the formation of functional hyperpolarization-activated cyclic nucleotide-gated channels". J. Biol. Chem. (United States) 278 (44): 43781–6. doi:10.1074/jbc.M306958200. ISSN 0021-9258. PMID 12928435.
^ Proenza, Catherine; Tran Neil, Angoli Damiano, Zahynacz Kristin, Balcar Petr, Accili Eric A (Aug. 2002). "Different roles for the cyclic nucleotide binding domain and amino terminus in assembly and expression of hyperpolarization-activated, cyclic nucleotide-gated channels". J. Biol. Chem. (United States) 277 (33): 29634–42. doi:10.1074/jbc.M200504200. ISSN 0021-9258. PMID 12034718.

External links

MeSH HCN1+protein,+human

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

PDB gallery

1q3e: HCN2J 443-645 in the presence of cGMP

1q43: HCN2I 443-640 in the presence of cAMP, selenomethionine derivative

1q5o: HCN2J 443-645 in the presence of cAMP, selenomethionine derivative

Membrane transport protein: ion channels (TC 1A)

Ca²⁺: Calcium channel

Voltage-gated	L-type/Ca_vα (1.1, 1.2, 1.3, 1.4) · N-type/Ca_vα2.2 · P-type/Ca_vα(2.1) · Q-type/Ca_vα2.1 · R-type/Ca_vα2.3 · T-type/Ca_vα(3.1, 3.2, 3.3) α₂δ-subunits (1, 2) · β-subunits (β1, β2, β3, β4) · γ-subunits (γ1, γ2, γ3, γ4) Cation channels of sperm (1, 2, 3, 4) · Two-pore channel (1, 2)

Ligand-gated	Inositol trisphosphate receptor (1, 2, 3) · Ryanodine receptor (1, 2, 3)

Na⁺: Sodium channel

Constitutively active	Epithelial sodium channel (α, β, γ, δ)

Proton gated	Amiloride-sensitive cation channel (1, 2, 3, 4)

Voltage-gated	Na_vα (1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 7A) · Na_vβ (1, 2, 3, 4)

K⁺: Potassium channel

Voltage-gated	K_vα1-6 (1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8) · (2.1, 2.2) · (3.1, 3.2, 3.3, 3.4) · (4.1, 4.2, 4.3) · (5.1) · (6.1, 6.2, 6.3, 6.4) K_vα7-12 (7.1, 7.2, 7.3, 7.4, 7.5) · (8.1, 8.2) · (9.1, 9.2, 9.3) · (10.1, 10.2) · (11.1/hERG, 11.2, 11.3) · (12.1, 12.2, 12.3) K_vβ (1, 2, 3) · KCNIP (1, 2, 3, 4) · minK/ISK · minK/ISK-like · MiRP (1, 2, 3) · Shaker gene

Calcium-activated	BK channel (α1, β1, β2, β3, β4) · SK channel (SK1, SK2, SK3, SK4) · K_Ca (1.1, 2.1, 2.2, 2.3, 3.1, 4.1, 4.2, 5.1)

Inward-rectifier	K_ATP · K_ir (1.1, 2.1, 2.2, 2.3, 2.4, 2.6) · GIRK/K_ir (3.1, 3.2, 3.3, 3.4) · K_ir (4.1, 4.2, 5.1, 6.1, 6.2, 7.1)

Tandem pore domain	K2P (1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 15, 16, 17, 18)

Other

Cl^-: Chloride channel	ANO1 · Bestrophin (1, 2) · CFTR · CLCA (1, 2, 3, 4) · CLCN (1, 2, 3, 4, 5, 6, 7, KA, KB) · CLIC (1, 2, 3, 4, 5, 6, L1) · CLNS (1A, 1B)

H⁺: Voltage-gated	HVCN1

M⁺: TRP cation channel	TRPA (1) · TRPC (1, 2, 3, 4, 4AP, 5, 6, 7) · TRPM (1, 2, 3, 4, 5, 6, 7, 8) · TRPML (1, 2, 3) · TRPP (1, 2) · TRPV (1, 2, 3, 4, 5, 6)

Cyclic nucleotide-gated (FC)	α (1, 2, 3, 4) · β (1, 2, 3) · HCN (1, 2, 3, 4)

Porin	Aquaporin (1, 2, 3, 4, 5, 7, 8, 9) · Voltage-dependent anion channel (1, 2, 3) · General bacterial porin family

Gap junction	Connexin: A (GJA1, GJA3, GJA4, GJA5, GJA8, GJA9, GJA10) · B (GJB1, GJB2, GJB3, GJB4, GJB5, GJB6, GJB7) · C (GJC1, GJC2, GJC3) · D (GJD2, GJD3, GJD4)) Innexin

General	Ligand-gated ion channel · Voltage-gated ion channel · Stretch-activated ion channel