CLCN2

Chloride channel, voltage-sensitive 2
Identifiers
Symbols	CLCN2 ; CIC-2; CLC2; ECA2; ECA3; EGI11; EGI3; EGMA; EJM6; EJM8; LKPAT; clC-2
External IDs	OMIM: 600570 MGI: 105061 HomoloGene: 3213 IUPHAR: 699 ChEMBL: 1628478 GeneCards: CLCN2 Gene
Gene ontology Molecular function • voltage-gated chloride channel activity Cellular component • plasma membrane • chloride channel complex Biological process • transport • ion transmembrane transport • transmembrane transport • retina development in camera-type eye • cell differentiation involved in salivary gland development • chloride transmembrane transport • regulation of anion transmembrane transport Sources: Amigo / QuickGO
RNA expression pattern
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	1181	12724
Ensembl	ENSG00000114859	ENSMUSG00000022843
UniProt	P51788	Q9R0A1
RefSeq (mRNA)	NM_001171087	NM_009900
RefSeq (protein)	NP_001164558	NP_034030
Location (UCSC)	Chr 3: 184.35 – 184.36 Mb	Chr 16: 20.7 – 20.72 Mb
PubMed search

Chloride channel protein 2 is a protein that in humans is encoded by the CLCN2 gene.^[1][2] Mutations of this gene have been found to cause leukoencephalopathy (PMID 23707145) and Idiopathic generalised epilepsy (OMIM: 600699).^[3][4] CLCN2 contains a transmembrane region that is involved in chloride ion transport as well two intracellular copies of the CBS domain.

See also

• Chloride channel

References

1. Cid LP, Montrose-Rafizadeh C, Smith DI, Guggino WB, Cutting GR (Aug 1995). "Cloning of a putative human voltage-gated chloride channel (CIC-2) cDNA widely expressed in human tissues". Hum Mol Genet 4 (3): 407–413. doi:10.1093/hmg/4.3.407. PMID 7795595.
2. "Entrez Gene: CLCN2 chloride channel 2".
3. Haug K, Warnstedt M, Alekov AK, et al. (2003). "Mutations in CLCN2 encoding a voltage-gated chloride channel are associated with idiopathic generalized epilepsies". Nat. Genet. 33 (4): 527–532. doi:10.1038/ng1121. PMID 12612585. (Retracted)
4. Combi R, Grioni D, Contri M, et al. (April 2009). "Clinical and genetic familial study of a large cohort of Italian children with idiopathic epilepsy". Brain Res. Bull. 79 (2): 89–96. doi:10.1016/j.brainresbull.2009.01.008. PMID 19200853.

Further reading

• Lamb FS, Clayton GH, Liu BX, et al. (1999). "Expression of CLCN voltage-gated chloride channel genes in human blood vessels". J. Mol. Cell. Cardiol. 31 (3): 657–666. doi:10.1006/jmcc.1998.0901. PMID 10198195.
• Sander T, Schulz H, Saar K, et al. (2000). "Genome search for susceptibility loci of common idiopathic generalised epilepsies". Hum. Mol. Genet. 9 (10): 1465–1472. doi:10.1093/hmg/9.10.1465. PMID 10888596.
• Lamb FS, Graeff RW, Clayton GH, et al. (2001). "Ontogeny of CLCN3 chloride channel gene expression in human pulmonary epithelium". Am. J. Respir. Cell Mol. Biol. 24 (4): 376–81. doi:10.1165/ajrcmb.24.4.4114. PMID 11306429.
• Lipecka J, Bali M, Thomas A, et al. (2002). "Distribution of ClC-2 chloride channel in rat and human epithelial tissues". Am. J. Physiol., Cell Physiol. 282 (4): C805–16. doi:10.1152/ajpcell.00291.2001. PMID 11880269.
• Nehrke K, Arreola J, Nguyen HV, et al. (2002). "Loss of hyperpolarization-activated Cl⁻ current in salivary acinar cells from Clcn2 knockout mice". J. Biol. Chem. 277 (26): 23604–23611. doi:10.1074/jbc.M202900200. PMID 11976342.
• 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): 16899–16903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Dhani SU, Mohammad-Panah R, Ahmed N, et al. (2003). "Evidence for a functional interaction between the ClC-2 chloride channel and the retrograde motor dynein complex". J. Biol. Chem. 278 (18): 16262–16270. doi:10.1074/jbc.M209828200. PMID 12601004.
• Olsen ML, Schade S, Lyons SA, et al. (2003). "Expression of voltage-gated chloride channels in human glioma cells". J. Neurosci. 23 (13): 5572–82. PMID 12843258.
• Cuppoletti J, Tewari KP, Sherry AM, et al. (2004). "Sites of protein kinase A activation of the human ClC-2 Cl(-) channel". J. Biol. Chem. 279 (21): 21849–21856. doi:10.1074/jbc.M312567200. PMID 15010473.
• Niemeyer MI, Yusef YR, Cornejo I, et al. (2005). "Functional evaluation of human ClC-2 chloride channel mutations associated with idiopathic generalized epilepsies". Physiol. Genomics 19 (1): 74–83. doi:10.1152/physiolgenomics.00070.2004. PMID 15252188.
• Huber SM, Duranton C, Henke G, et al. (2004). "Plasmodium induces swelling-activated ClC-2 anion channels in the host erythrocyte". J. Biol. Chem. 279 (40): 41444–41452. doi:10.1074/jbc.M407618200. PMID 15272009.
• Hori K, Takahashi Y, Horikawa N, et al. (2004). "Is the ClC-2 chloride channel involved in the Cl⁻ secretory mechanism of gastric parietal cells?". FEBS Lett. 575 (1–3): 105–108. doi:10.1016/j.febslet.2004.08.044. PMID 15388342.
• Chu S, Blaisdell CJ, Bamford P, Ferro TJ (2004). "Interferon-gamma regulates ClC-2 chloride channel in lung epithelial cells". Biochem. Biophys. Res. Commun. 324 (1): 31–39. doi:10.1016/j.bbrc.2004.09.026. PMID 15464978.
• 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): 2121–2127. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
• D'Agostino D, Bertelli M, Gallo S, et al. (2006). "Mutations and polymorphisms of the CLCN2 gene in idiopathic epilepsy". Neurology 63 (8): 1500–2. doi:10.1212/01.wnl.0000142093.94998.1a. PMID 15505175.
• Blaisdell CJ, Howard TD, Stern A, et al. (2004). "CLC-2 single nucleotide polymorphisms (SNPs) as potential modifiers of cystic fibrosis disease severity". BMC Med. Genet. 5: 26. doi:10.1186/1471-2350-5-26. PMC 526769. PMID 15507145.
• Heils A (2004). "CLCN2 and idiopathic generalized epilepsy". Advances in neurology 95: 265–71. PMID 15508929.
• Hinzpeter A, Lipecka J, Brouillard F, et al. (2006). "Association between Hsp90 and the ClC-2 chloride channel upregulates channel function". Am. J. Physiol., Cell Physiol. 290 (1): C45–C56. doi:10.1152/ajpcell.00209.2005. PMID 16049054.

External links

• CLCN2 protein, human at the US National Library of Medicine Medical Subject Headings (MeSH)

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