Variant chr15-78629336-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_000750.5(CHRNB4):c.969G>A(p.Ser323=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000479 in 1,613,978 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0021 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00031 ( 3 hom. )

Consequence

CHRNB4
NM_000750.5 synonymous

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -2.61

Variant links:

Genes affected

CHRNB4 (HGNC:1964): (cholinergic receptor nicotinic beta 4 subunit) This gene is found within a conserved gene cluster and encodes one of the beta subunits of the nicotinic acetylcholine receptor (nAChRs) superfamily which form ligand-gated ion channels with a central pore that forms a cation channel. Neuronal nAChRs are pentameric structures that can be either homomeric or heteromeric, with heteromeric structures containing both alpha and beta subunits. Each subunit contains an extracellular amino terminus and four transmembrane domains. Nicotine is one of the agonists that binds to the receptor. Variants in this gene have been associated with nicotine dependence and lung cancer. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Sep 2017]

CHRNB4 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.79).

BP6

Variant 15-78629336-C-T is Benign according to our data. Variant chr15-78629336-C-T is described in ClinVar as [Benign]. Clinvar id is 718588.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High Homozygotes in GnomAdExome4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CHRNB4	NM_000750.5 linkuse as main transcript	c.969G>A	p.Ser323=	synonymous_variant	5/6	ENST00000261751.8	NP_000741.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CHRNB4	ENST00000261751.8 linkuse as main transcript	c.969G>A	p.Ser323=	synonymous_variant	5/6	1	NM_000750.5	ENSP00000261751	P1	P30926-1
CHRNB4	ENST00000412074.6 linkuse as main transcript	c.359+1740G>A		intron_variant		1		ENSP00000416386		P30926-2
CHRNB4	ENST00000559849.5 linkuse as main transcript			downstream_gene_variant		1		ENSP00000457404

Frequencies

GnomAD3 genomes

AF:

0.00208

AC:

317

AN:

152048

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00720

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000415

Gnomad FIN

AF:

0.000283

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.000720

AC:

181

AN:

251322

Hom.:

AF XY:

0.000633

AC XY:

AN XY:

135830

show subpopulations

Gnomad AFR exome

AF:

0.00763

Gnomad AMR exome

AF:

0.000405

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000882

Gnomad FIN exome

AF:

0.000371

Gnomad NFE exome

AF:

0.0000528

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000312

AC:

456

AN:

1461812

Hom.:

Cov.:

AF XY:

0.000315

AC XY:

229

AN XY:

727202

show subpopulations

Gnomad4 AFR exome

AF:

0.00771

Gnomad4 AMR exome

AF:

0.000358

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00108

Gnomad4 FIN exome

AF:

0.000225

Gnomad4 NFE exome

AF:

0.0000315

Gnomad4 OTH exome

AF:

0.000679

GnomAD4 genome

AF:

0.00208

AC:

317

AN:

152166

Hom.:

Cov.:

AF XY:

0.00191

AC XY:

142

AN XY:

74386

show subpopulations

Gnomad4 AFR

AF:

0.00718

Gnomad4 AMR

AF:

0.000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000416

Gnomad4 FIN

AF:

0.000283

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.00110

Hom.:

Bravo

AF:

0.00240

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 30, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.79

CADD

Benign

0.86

DANN

Benign

0.83

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

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

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over