Variant rs67158670 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 0P and 0B.

The NM_000746.6(CHRNA7):c.497_498del(p.Leu166GlnfsTer41) variant causes a frameshift change involving the alteration of a conserved nucleotide. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 12)

Exomes 𝑓: 0.000033 ( 2 hom. )

Failed GnomAD Quality Control

Consequence

CHRNA7
NM_000746.6 frameshift

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.58

Variant links:

Genes affected

CHRNA7 (HGNC:1960): (cholinergic receptor nicotinic alpha 7 subunit) The nicotinic acetylcholine receptors (nAChRs) are members of a superfamily of ligand-gated ion channels that mediate fast signal transmission at synapses. The nAChRs are thought to be hetero-pentamers composed of homologous subunits. The proposed structure for each subunit is a conserved N-terminal extracellular domain followed by three conserved transmembrane domains, a variable cytoplasmic loop, a fourth conserved transmembrane domain, and a short C-terminal extracellular region. The protein encoded by this gene forms a homo-oligomeric channel, displays marked permeability to calcium ions and is a major component of brain nicotinic receptors that are blocked by, and highly sensitive to, alpha-bungarotoxin. Once this receptor binds acetylcholine, it undergoes an extensive change in conformation that affects all subunits and leads to opening of an ion-conducting channel across the plasma membrane. This gene is located in a region identified as a major susceptibility locus for juvenile myoclonic epilepsy and a chromosomal location involved in the genetic transmission of schizophrenia. An evolutionarily recent partial duplication event in this region results in a hybrid containing sequence from this gene and a novel FAM7A gene. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2012]

CHRNA7 links:

LOC102724078 (HGNC:):

LOC102724078 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CHRNA7	NM_000746.6 linkuse as main transcript	c.497_498del	p.Leu166GlnfsTer41	frameshift_variant	6/10	ENST00000306901.9	NP_000737.1
LOC102724078	XR_007064561.1 linkuse as main transcript	n.1529_1530del		non_coding_transcript_exon_variant	10/10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CHRNA7	ENST00000306901.9 linkuse as main transcript	c.497_498del	p.Leu166GlnfsTer41	frameshift_variant	6/10	1	NM_000746.6	ENSP00000303727	P1	P36544-1

Frequencies

GnomAD3 genomes

AF:

0.0000326

AC:

AN:

92150

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000530

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000871

GnomAD3 exomes

AF:

0.0000325

AC:

AN:

184842

Hom.:

AF XY:

0.0000199

AC XY:

AN XY:

100558

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000760

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000124

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000255

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000333

AC:

AN:

1080918

Hom.:

AF XY:

0.0000257

AC XY:

AN XY:

545032

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000516

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000822

Gnomad4 SAS exome

AF:

0.0000529

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000317

Gnomad4 OTH exome

AF:

0.0000437

GnomAD4 genome

AF:

0.0000325

AC:

AN:

92234

Hom.:

Cov.:

AF XY:

0.0000224

AC XY:

AN XY:

44598

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000531

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000858

Alfa

AF:

0.0115

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over