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  1. Test Catalog
  2. CHRNA4

CHRNA4

Alias

BFNC; EBN; EBN1; NACHR; NACHRA4; NACRA4

Associated disorders

The CHRNA4 gene is associated with autosomal dominant nocturnal frontal lobe epilepsy (MedGen UID: 324932).

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CHRNA4

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Invitae tests that include this gene:

Invitae Epilepsy Panel 133 genes

Pathogenic variants in CHRNA4 are associated with 10-20% of clinical cases of familial autosomal dominant nocturnal frontal lobe epilepsy, and rarely cause sporadic autosomal dominant nocturnal frontal lobe epilepsy.

Nicotinic acetylcholine receptors are neuronal receptors that bind to the neurotransmitter acetylcholine and trigger an influx of cations to stimulate the neuron to fire. The CHRNA4 gene encodes an alpha subunit of the nicotinic acetylcholine receptor (PMID: 25717303).

  1. Becchetti, A, et al. The role of nicotinic acetylcholine receptors in autosomal dominant nocturnal frontal lobe epilepsy. Front Physiol. 2015; 6:22. PMID: 25717303
  2. Kurahashi, H, Hirose, S. Autosomal Dominant Nocturnal Frontal Lobe Epilepsy. 2002 May 16. In: Pagon, RA, et al, editors. GeneReviews(®) (Internet). University of Washington, Seattle. PMID: 20301348

Assay and technical information

Invitae is a College of American Pathologists (CAP)-accredited and Clinical Laboratory Improvement Amendments (CLIA)-certified clinical diagnostic laboratory performing full-gene sequencing and deletion/duplication analysis using next-generation sequencing technology (NGS).

Our sequence analysis covers clinically important regions of each gene, including coding exons, +/- 10 base pairs of adjacent intronic sequence in the transcript listed below. In addition, analysis covers the select non-coding variants specifically defined in the table below. Any variants that fall outside these regions are not analyzed. Any specific limitations in the analysis of these genes are also listed in the table below.

Our analysis detects most intragenic deletions and duplications at single exon resolution. However, in rare situations, single-exon copy number events may not be analyzed due to inherent sequence properties or isolated reduction in data quality. If you are requesting the detection of a specific single-exon copy number variation, please contact Client Services before placing your order.

Gene Transcript reference Sequencing analysis Deletion/Duplication analysis
CHRNA4 NM_000744.6
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References

  1. Becchetti, A, et al. The role of nicotinic acetylcholine receptors in autosomal dominant nocturnal frontal lobe epilepsy. Front Physiol. 2015; 6:22. PMID: 25717303
  2. Kurahashi, H, Hirose, S. Autosomal Dominant Nocturnal Frontal Lobe Epilepsy. 2002 May 16. In: Pagon, RA, et al, editors. GeneReviews(®) (Internet). University of Washington, Seattle. PMID: 20301348

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