KCNC4

From Wikipedia, the free encyclopedia

Potassium voltage-gated channel, Shaw-related subfamily, member 4

PDB rendering based on 1b4g.

Available structures: 1b4g, 1b4i, 1ztn

Identifiers

Symbol(s)

KCNC4; HKSHIIIC; KSHIIIC; KV3.4; MGC126818

External IDs

OMIM: 176265 MGI: 96670 HomoloGene: 68427

Gene ontology
Molecular Function:	• ion channel activity • voltage-gated potassium channel activity • protein binding • potassium ion binding
Cellular Component:	• membrane fraction • voltage-gated potassium channel complex • membrane • integral to membrane
Biological Process:	• ion transport • potassium ion transport • synaptic transmission

RNA expression pattern

More reference expression data

Orthologs

Human

Mouse

Refseq

NM_001039574 (mRNA)
NP_001034663 (protein)

NM_145922 (mRNA)
NP_666034 (protein)

Location

Chr 1: 110.56 - 110.58 Mb

Chr 3: 107.57 - 107.59 Mb

Pubmed search

[1]

[2]

Potassium voltage-gated channel, Shaw-related subfamily, member 4 (KCNC4), also known as K_v3.4, is a human gene.^[1]

The Shaker gene family of Drosophila encodes components of voltage-gated potassium channels and is comprised of four subfamilies. Based on sequence similarity, this gene is similar to the Shaw subfamily. The protein encoded by this gene belongs to the delayed rectifier class of channel proteins and is an integral membrane protein that mediates the voltage-dependent potassium ion permeability of excitable membranes. It generates atypical voltage-dependent transient current that may be important for neuronal excitability. Several transcript variants encoding different isoforms have been found for this gene.^[1]

[edit] See also

Voltage-gated potassium channel

[edit] References

^ ^a ^b Entrez Gene: KCNC4 potassium voltage-gated channel, Shaw-related subfamily, member 4.

[edit] Further reading

Gutman GA, Chandy KG, Grissmer S, et al. (2006). "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.
Vega-Saenz de Miera E, Moreno H, Fruhling D, et al. (1992). "Cloning of ShIII (Shaw-like) cDNAs encoding a novel high-voltage-activating, TEA-sensitive, type-A K+ channel.". Proc. Biol. Sci. 248 (1321): 9–18. doi:10.1098/rspb.1992.0036. PMID 1381835.
Ghanshani S, Pak M, McPherson JD, et al. (1992). "Genomic organization, nucleotide sequence, and cellular distribution of a Shaw-related potassium channel gene, Kv3.3, and mapping of Kv3.3 and Kv3.4 to human chromosomes 19 and 1.". Genomics 12 (2): 190–6. PMID 1740329.
Rudy B, Sen K, Vega-Saenz de Miera E, et al. (1991). "Cloning of a human cDNA expressing a high voltage-activating, TEA-sensitive, type-A K+ channel which maps to chromosome 1 band p21.". J. Neurosci. Res. 29 (3): 401–12. doi:10.1002/jnr.490290316. PMID 1920536.
Covarrubias M, Wei A, Salkoff L, Vyas TB (1995). "Elimination of rapid potassium channel inactivation by phosphorylation of the inactivation gate.". Neuron 13 (6): 1403–12. PMID 7993631.
Beck EJ, Sorensen RG, Slater SJ, Covarrubias M (1998). "Interactions between multiple phosphorylation sites in the inactivation particle of a K+ channel. Insights into the molecular mechanism of protein kinase C action.". J. Gen. Physiol. 112 (1): 71–84. PMID 9649584.
Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences.". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMID 12477932.
Angulo E, Noé V, Casadó V, et al. (2005). "Up-regulation of the Kv3.4 potassium channel subunit in early stages of Alzheimer's disease.". J. Neurochem. 91 (3): 547–57. doi:10.1111/j.1471-4159.2004.02771.x. PMID 15485486.
Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMID 15489334.
Abbott GW, Butler MH, Goldstein SA (2006). "Phosphorylation and protonation of neighboring MiRP2 sites: function and pathophysiology of MiRP2-Kv3.4 potassium channels in periodic paralysis.". FASEB J. 20 (2): 293–301. doi:10.1096/fj.05-5070com. PMID 16449802.
Gregory SG, Barlow KF, McLay KE, et al. (2006). "The DNA sequence and biological annotation of human chromosome 1.". Nature 441 (7091): 315–21. doi:10.1038/nature04727. PMID 16710414.

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v • d • e Membrane transport protein: ion channels

Ca²⁺: Calcium channel	Voltage-dependent calcium channel (L-type/Ca_vα(1.1, 1.2, 1.3, 1.4), N-type, P-type/Ca_vα(2.1), Q-type, R-type, T-type, α₂δ-subunits (1, 2), β-subunits (β1, β2, β3, β4), γ-subunits (γ1, γ2, γ3, γ4) Inositol triphosphate receptor • Ryanodine receptor • Cation channels of sperm • Two-pore channel

Na⁺: Sodium channel	Na_vα (1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.9, 7A) • Na_vβ (1, 2, 3, 4) • Epithelial sodium channel

K⁺: Potassium channel	Voltage-gated (K_vα (1.1, 1.2, 1.3, 1.4, 1.5, 2.1, 3.1, 3.4, 4.1, 4.2, 4.3, 6.1, 7.1, 7.2, 7.3, 7.4, 7.5, 9.3, 10.1, 11.1/hERG) • K_vβ (1, 2), Shaker gene, KCNE1) Calcium-activated (BK channel: α1, β1, β2, β3, β4; SK channel: SK1, SK2, SK3, SK4) Inward-rectifier K_ir (1.1, 2.1, 2.2, 2.3, 2.4, GIRK, 3.1, 3.2, 3.3, 3.4, 4.1, 4.2, 5.1, 6.1, 6.2, 7.1) Tandem pore domain K2P (1, 2, 3, 4, 6, 9, 15, 17)

Cl^-: Chloride channel	Cystic fibrosis transmembrane conductance regulator

Porin	Aquaporin (1, 2, 3, 4, 5, 7, 8, 9) • Voltage-dependent anion channel (1)

Cations: TRP	TRPA (1) • TRPC (1, 2, 3, 4, 4AP, 5, 6, 7) • TRPM (1, 2, 3, 4, 5, 6, 7, 8) • TRPML (Mucolipin-1) • TRPP (1, 2) • TRPV (1, 2, 3, 4, 5, 6)

Other/general	Voltage-gated ion channel • Ligand-gated ion channel • Cyclic nucleotide-gated ion channel (α1, α2, α3, β1, β3, H1, H2, H3, H4) • Stretch-activated ion channel