The K-Cl cotransporter KCC3 is mutant in a severe peripheral neuropathy associated with agenesis of the corpus callosum

Heidi C. Howard, David B. Mount, Daniel Rochefort, Nellie Byun, Nicolas Dupré, Jianming Lu, Xuemo Fan, Luyan Song, Jean Baptiste Rivière, Claude Prévost, Jürgen Horst, Alessandro Simonati, Beate Lemcke, Rick Welch, Roger England, Frank Q. Zhan, Adriana Mercado, William B. Siesser, Alfred L. George, Michael Mcdonald & 4 others Jean Pierre Bouchard, Jean Mathieu, Eric Delpire, Guy A. Rouleau

Research output: Contribution to journalArticle

182 Citations (Scopus)

Abstract

Peripheral neuropathy associated with agenesis of the corpus callosum (ACCPN) is a severe sensorimotor neuropathy associated with mental retardation, dysmorphic features and complete or partial agenesis of the corpus callosum. ACCPN is transmitted in an autosomal recessive fashion and is found at a high frequency in the province of Quebec, Canada. ACCPN has been previously mapped to chromosome 15q. The gene SLC12A6 (solute carrier family 12, member 6), which encodes the K+-Cl- transporter KCC3 and maps within the ACCPN candidate region, was screened for mutations in individuals with ACCPN. Four distinct protein-truncating mutations were found: two in the French Canadian population and two in non-French Canadian families. The functional consequence of the predominant French Canadian mutation (2436delG, Thr813fsX813) was examined by heterologous expression of wildtype and mutant KCC3 in Xenopus laevis oocytes; the truncated mutant is appropriately glycosylated and expressed at the cellular membrane, where it is non-functional. Mice generated with a targeted deletion of Slc12a6 have a locomotor deficit, peripheral neuropathy and a sensorimotor gating deficit, similar to the human disease. Our findings identify mutations in SLC12A6 as the genetic lesion underlying ACCPN and suggest a critical role for SLC12A6 in the development and maintenance of the nervous system.

Original languageEnglish (US)
Pages (from-to)384-392
Number of pages9
JournalNature Genetics
Volume32
Issue number3
DOIs
StatePublished - Nov 1 2002

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Mutation
Sodium-Potassium-Chloride Symporters
Sensory Gating
Quebec
Xenopus laevis
Peripheral Nervous System Diseases
Corpus callosum agenesis neuronopathy
potassium-chloride symporters
Intellectual Disability
Nervous System
Oocytes
Canada
Chromosomes
Maintenance
Membranes
Population
Genes
Proteins
Partial agenesis of corpus callosum

All Science Journal Classification (ASJC) codes

  • Genetics

Cite this

Howard, H. C., Mount, D. B., Rochefort, D., Byun, N., Dupré, N., Lu, J., ... Rouleau, G. A. (2002). The K-Cl cotransporter KCC3 is mutant in a severe peripheral neuropathy associated with agenesis of the corpus callosum. Nature Genetics, 32(3), 384-392. https://doi.org/10.1038/ng1002

The K-Cl cotransporter KCC3 is mutant in a severe peripheral neuropathy associated with agenesis of the corpus callosum. / Howard, Heidi C.; Mount, David B.; Rochefort, Daniel; Byun, Nellie; Dupré, Nicolas; Lu, Jianming; Fan, Xuemo; Song, Luyan; Rivière, Jean Baptiste; Prévost, Claude; Horst, Jürgen; Simonati, Alessandro; Lemcke, Beate; Welch, Rick; England, Roger; Zhan, Frank Q.; Mercado, Adriana; Siesser, William B.; George, Alfred L.; Mcdonald, Michael; Bouchard, Jean Pierre; Mathieu, Jean; Delpire, Eric; Rouleau, Guy A.

In: Nature Genetics, Vol. 32, No. 3, 01.11.2002, p. 384-392.

Research output: Contribution to journalArticle

Howard, HC, Mount, DB, Rochefort, D, Byun, N, Dupré, N, Lu, J, Fan, X, Song, L, Rivière, JB, Prévost, C, Horst, J, Simonati, A, Lemcke, B, Welch, R, England, R, Zhan, FQ, Mercado, A, Siesser, WB, George, AL, Mcdonald, M, Bouchard, JP, Mathieu, J, Delpire, E & Rouleau, GA 2002, 'The K-Cl cotransporter KCC3 is mutant in a severe peripheral neuropathy associated with agenesis of the corpus callosum', Nature Genetics, vol. 32, no. 3, pp. 384-392. https://doi.org/10.1038/ng1002
Howard, Heidi C. ; Mount, David B. ; Rochefort, Daniel ; Byun, Nellie ; Dupré, Nicolas ; Lu, Jianming ; Fan, Xuemo ; Song, Luyan ; Rivière, Jean Baptiste ; Prévost, Claude ; Horst, Jürgen ; Simonati, Alessandro ; Lemcke, Beate ; Welch, Rick ; England, Roger ; Zhan, Frank Q. ; Mercado, Adriana ; Siesser, William B. ; George, Alfred L. ; Mcdonald, Michael ; Bouchard, Jean Pierre ; Mathieu, Jean ; Delpire, Eric ; Rouleau, Guy A. / The K-Cl cotransporter KCC3 is mutant in a severe peripheral neuropathy associated with agenesis of the corpus callosum. In: Nature Genetics. 2002 ; Vol. 32, No. 3. pp. 384-392.
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