CLCN2 gene

chloride voltage-gated channel 2

The information on this page was automatically extracted from online scientific databases.

From NCBI Gene:

This gene encodes a voltage-gated chloride channel. The encoded protein is a transmembrane protein that maintains chloride ion homeostasis in various cells. Defects in this gene may be a cause of certain epilepsies. Four transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2012]

From UniProt:

Voltage-gated chloride channel. Chloride channels have several functions including the regulation of cell volume; membrane potential stabilization, signal transduction and transepithelial transport.

Covered on Genetics Home Reference:

From NCBI Gene:

  • Epilepsy with grand mal seizures on awakening
  • Leukoencephalopathy with ataxia

From UniProt:

Leukoencephalopathy with ataxia (LKPAT): An autosomal recessive neurologic disorder with a characteristic pattern of white matter abnormalities on brain MRI. Affected individuals have prominent signal abnormalities and decreased apparent diffusion coefficient values in the posterior limbs of the internal capsules, middle cerebral peduncles, pyramidal tracts in the pons, and middle cerebellar peduncles, suggesting myelin microvacuolation. Clinical features include ataxia and unstable gait. More variable abnormalities may include visual field defects, headaches, and learning disabilities. [MIM:615651]

Juvenile myoclonic epilepsy 8 (EJM8): A subtype of idiopathic generalized epilepsy. Patients have afebrile seizures only, with onset in adolescence (rather than in childhood) and myoclonic jerks which usually occur after awakening and are triggered by sleep deprivation and fatigue. [MIM:607628]

Juvenile absence epilepsy 2 (JAE2): A subtype of idiopathic generalized epilepsy characterized by onset occurring around puberty, absence seizures, generalized tonic-clonic seizures (GTCS), GTCS on awakening, and myoclonic seizures. [MIM:607628]

Epilepsy, idiopathic generalized 11 (EIG11): A disorder characterized by recurring generalized seizures in the absence of detectable brain lesions and/or metabolic abnormalities. Generalized seizures arise diffusely and simultaneously from both hemispheres of the brain. [MIM:607628]

Cytogenetic Location: 3q27.1, which is the long (q) arm of chromosome 3 at position 27.1

Molecular Location: base pairs 184,346,185 to 184,361,651 on chromosome 3 (Homo sapiens Annotation Release 108, GRCh38.p7) (NCBI)

Cytogenetic Location: 3q27.1, which is the long (q) arm of chromosome 3 at position 27.1
  • CIC-2
  • clC-2
  • CLC2
  • ECA2
  • ECA3
  • EGI3
  • EGI11
  • EGMA
  • EJM6
  • EJM8