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CLCN2 gene

The CLCN2 gene encodes a transmembrane protein, the chloride channel protein 2, which as a voltage-gated chloride channel is responsible for intracellular chloride ion homeostasis. Mutations cause autosomal dominant hyperaldosteronism type 2 and recessive leukoencephalopathy. Genetic variants are aso described as being associated with epilepsies.

Genetests:

Clinic Method Carrier testing
Turnaround 5 days
Specimen type genomic DNA
Clinic Method Massive parallel sequencing
Turnaround 25 days
Specimen type genomic DNA
Research Method Genomic sequencing of the entire coding region
Turnaround 25 days
Specimen type genomic DNA

Related Diseases:

Leukoencephalopathy with ataxia
CLCN2
Hyperaldosteronism type 2
CLCN2

References:

1.

Stowasser M et al. (1992) Familial hyperaldosteronism type II: five families with a new variety of primary aldosteronism.

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2.

Cid LP et al. (1995) Cloning of a putative human voltage-gated chloride channel (CIC-2) cDNA widely expressed in human tissues.

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3.

Schwiebert EM et al. (1998) Analysis of ClC-2 channels as an alternative pathway for chloride conduction in cystic fibrosis airway cells.

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4.

Sander T et al. (2000) Genome search for susceptibility loci of common idiopathic generalised epilepsies.

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5.

Sík A et al. (2000) Distribution of chloride channel-2-immunoreactive neuronal and astrocytic processes in the hippocampus.

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6.

Bösl MR et al. (2001) Male germ cells and photoreceptors, both dependent on close cell-cell interactions, degenerate upon ClC-2 Cl(-) channel disruption.

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7.

Haug K et al. (2003) Mutations in CLCN2 encoding a voltage-gated chloride channel are associated with idiopathic generalized epilepsies.

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8.

Niemeyer MI et al. (2004) Functional evaluation of human ClC-2 chloride channel mutations associated with idiopathic generalized epilepsies.

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9.

Stogmann E et al. (2006) Mutations in the CLCN2 gene are a rare cause of idiopathic generalized epilepsy syndromes.

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10.

Blanz J et al. (2007) Leukoencephalopathy upon disruption of the chloride channel ClC-2.

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11.

Saint-Martin C et al. (2009) Two novel CLCN2 mutations accelerating chloride channel deactivation are associated with idiopathic generalized epilepsy.

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12.

Kleefuss-Lie A et al. (2009) CLCN2 variants in idiopathic generalized epilepsy.

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13.

Niemeyer MI et al. (2010) No evidence for a role of CLCN2 variants in idiopathic generalized epilepsy.

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14.

Depienne C et al. (2013) Brain white matter oedema due to ClC-2 chloride channel deficiency: an observational analytical study.

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15.

Scholl UI et al. (2018) CLCN2 chloride channel mutations in familial hyperaldosteronism type II.

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16.

Fernandes-Rosa FL et al. (2018) A gain-of-function mutation in the CLCN2 chloride channel gene causes primary aldosteronism.

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Update: Nov. 3, 2022
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