CLCN7

Chloride channel, voltage-sensitive 7
Identifiers
Symbols	CLCN7 ; CLC-7; CLC7; OPTA2; OPTB4; PPP1R63
External IDs	OMIM: 602727 MGI: 1347048 HomoloGene: 56546 IUPHAR: 706 GeneCards: CLCN7 Gene
Gene ontology Molecular function • voltage-gated chloride channel activity • chloride channel activity • ATP binding • antiporter activity Cellular component • lysosomal membrane • membrane • integral component of membrane • cytoplasmic vesicle Biological process • transport • response to pH • ion transmembrane transport • transmembrane transport • chloride transmembrane transport • regulation of anion transmembrane transport Sources: Amigo / QuickGO
RNA expression pattern
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	1186	26373
Ensembl	ENSG00000103249	ENSMUSG00000036636
UniProt	P51798	O70496
RefSeq (mRNA)	NM_001114331	NM_011930
RefSeq (protein)	NP_001107803	NP_036060
Location (UCSC)	Chr 16: 1.44 – 1.48 Mb	Chr 17: 25.13 – 25.16 Mb
PubMed search

Chloride channel 7 alpha subunit also known as H⁺/Cl⁻ exchange transporter 7 is a protein that in humans is encoded by the CLCN7 gene.^[1] In melanocytic cells this gene is regulated by the Microphthalmia-associated transcription factor.^[2][3]

Clinical significance

Mutations in the CLCN7 gene have been reported to be associated with autosomal dominant osteopetrosis type II, a rare disease of bones.^[4]

See also

• Chloride channel

References

1. "Entrez Gene: CLCN7 chloride channel 7".
2. Meadows NA, Sharma SM, Faulkner GJ, Ostrowski MC, Hume DA, Cassady AI (2007). "The expression of Clcn7 and Ostm1 in osteoclasts is coregulated by microphthalmia transcription factor". J. Biol. Chem. 282 (3): 1891–904. doi:10.1074/jbc.M608572200. PMID 17105730.
3. Hoek KS, Schlegel NC, Eichhoff OM, Widmer DS, Praetorius C, Einarsson SO, Valgeirsdottir S, Bergsteinsdottir K, Schepsky A, Dummer R, Steingrimsson E (2008). "Novel MITF targets identified using a two-step DNA microarray strategy". Pigment Cell Melanoma Res 21 (6): 665–76. doi:10.1111/j.1755-148X.2008.00505.x. PMID 19067971.
4. Coudert AE, Del Fattore A, Baulard C, Olaso R, Schiltz C, Collet C, Teti A, de Vernejoul MC (2014). "Differentially expressed genes in autosomal dominant osteopetrosis type II osteoclasts reveal known and novel pathways for osteoclast biology". Lab. Invest. 94 (3): 275–85. doi:10.1038/labinvest.2013.140. PMID 24336069.

Further reading

• Brandt S, Jentsch TJ (1996). "ClC-6 and ClC-7 are two novel broadly expressed members of the CLC chloride channel family". FEBS Lett. 377 (1): 15–20. doi:10.1016/0014-5793(95)01298-2. PMID 8543009.
• Héon E, Piguet B, Munier F, et al. (1996). "Linkage of autosomal dominant radial drusen (malattia leventinese) to chromosome 2p16-21". Arch. Ophthalmol. 114 (2): 193–8. doi:10.1001/archopht.1996.01100130187014. PMID 8573024.
• Lennon G, Auffray C, Polymeropoulos M, Soares MB (1996). "The I.M.A.G.E. Consortium: an integrated molecular analysis of genomes and their expression". Genomics 33 (1): 151–2. doi:10.1006/geno.1996.0177. PMID 8617505.
• Eggermont J (1998). "The exon-intron architecture of human chloride channel genes is not conserved". Biochim. Biophys. Acta 1397 (2): 156–60. doi:10.1016/s0167-4781(98)00014-1. PMID 9565675.
• White KE, Koller DL, Takacs I, et al. (1999). "Locus heterogeneity of autosomal dominant osteopetrosis (ADO)". J. Clin. Endocrinol. Metab. 84 (3): 1047–51. doi:10.1210/jc.84.3.1047. PMID 10084593.
• Daniels RJ, Peden JF, Lloyd C, et al. (2001). "Sequence, structure and pathology of the fully annotated terminal 2 Mb of the short arm of human chromosome 16". Hum. Mol. Genet. 10 (4): 339–52. doi:10.1093/hmg/10.4.339. PMID 11157797.
• Kornak U, Kasper D, Bösl MR, et al. (2001). "Loss of the ClC-7 chloride channel leads to osteopetrosis in mice and man". Cell 104 (2): 205–15. doi:10.1016/S0092-8674(01)00206-9. PMID 11207362.
• Cleiren E, Bénichou O, Van Hul E, et al. (2002). "Albers-Schönberg disease (autosomal dominant osteopetrosis, type II) results from mutations in the ClCN7 chloride channel gene". Hum. Mol. Genet. 10 (25): 2861–7. doi:10.1093/hmg/10.25.2861. PMID 11741829.
• Harada K, Toyooka S, Maitra A, et al. (2002). "Aberrant promoter methylation and silencing of the RASSF1A gene in pediatric tumors and cell lines". Oncogene 21 (27): 4345–9. doi:10.1038/sj.onc.1205446. PMID 12082624.
• 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. PMC 139241. PMID 12477932.
• Campos-Xavier AB, Saraiva JM, Ribeiro LM, et al. (2003). "Chloride channel 7 (CLCN7) gene mutations in intermediate autosomal recessive osteopetrosis". Hum. Genet. 112 (2): 186–9. doi:10.1007/s00439-002-0861-9. PMID 12522560.
• Waguespack SG, Koller DL, White KE, et al. (2004). "Chloride channel 7 (ClCN7) gene mutations and autosomal dominant osteopetrosis, type II". J. Bone Miner. Res. 18 (8): 1513–8. doi:10.1359/jbmr.2003.18.8.1513. PMID 12929941.
• Frattini A, Pangrazio A, Susani L, et al. (2004). "Chloride channel ClCN7 mutations are responsible for severe recessive, dominant, and intermediate osteopetrosis". J. Bone Miner. Res. 18 (10): 1740–7. doi:10.1359/jbmr.2003.18.10.1740. PMID 14584882.
• Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID 14702039.
• Henriksen K, Gram J, Schaller S, et al. (2004). "Characterization of Osteoclasts from Patients Harboring a G215R Mutation in ClC-7 Causing Autosomal Dominant Osteopetrosis Type II". Am. J. Pathol. 164 (5): 1537–45. doi:10.1016/S0002-9440(10)63712-1. PMC 1615650. PMID 15111300.
• 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. PMC 528928. PMID 15489334.
• Köttgen M, Benzing T, Simmen T, et al. (2005). "Trafficking of TRPP2 by PACS proteins represents a novel mechanism of ion channel regulation". EMBO J. 24 (4): 705–16. doi:10.1038/sj.emboj.7600566. PMC 549624. PMID 15692563.
• Pettersson U, Albagha OM, Mirolo M, et al. (2006). "Polymorphisms of the CLCN7 gene are associated with BMD in women". J. Bone Miner. Res. 20 (11): 1960–7. doi:10.1359/JBMR.050717. PMID 16234969.
• Kornak U, Ostertag A, Branger S, et al. (2006). "Polymorphisms in the CLCN7 gene modulate bone density in postmenopausal women and in patients with autosomal dominant osteopetrosis type II". J. Clin. Endocrinol. Metab. 91 (3): 995–1000. doi:10.1210/jc.2005-2017. PMID 16368748.
• Olsen JV, Blagoev B, Gnad F, et al. (2006). "Global, in vivo, and site-specific phosphorylation dynamics in signaling networks". Cell 127 (3): 635–48. doi:10.1016/j.cell.2006.09.026. PMID 17081983.

External links

• GeneReviews/NCBI/NIH/UW entry on CLCN7-Related Osteopetrosis
• CLCN7 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.