Variant chr17-7455935-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The ENST00000306071.7(CHRNB1):c.1359C>G(p.His453Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,613,756 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. H453H) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

CHRNB1
ENST00000306071.7 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.145

Variant links:

Genes affected

CHRNB1 (HGNC:1961): (cholinergic receptor nicotinic beta 1 subunit) The muscle acetylcholine receptor is composed of five subunits: two alpha subunits and one beta, one gamma, and one delta subunit. This gene encodes the beta subunit of the acetylcholine receptor. The acetylcholine receptor changes conformation upon acetylcholine binding leading to the opening of an ion-conducting channel across the plasma membrane. Mutations in this gene are associated with slow-channel congenital myasthenic syndrome. [provided by RefSeq, Jul 2008]

CHRNB1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.12517601).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CHRNB1	NM_000747.3 linkuse as main transcript	c.1359C>G	p.His453Gln	missense_variant	10/11	ENST00000306071.7	NP_000738.2	P11230-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
CHRNB1	ENST00000306071.7 linkuse as main transcript	c.1359C>G	p.His453Gln	missense_variant	10/11	1	NM_000747.3	ENSP00000304290.2	P11230-1
CHRNB1	ENST00000536404.6 linkuse as main transcript	c.1143C>G	p.His381Gln	missense_variant	9/10	2		ENSP00000439209.2	P11230-2
CHRNB1	ENST00000576360.1 linkuse as main transcript	c.996C>G	p.His332Gln	missense_variant	9/10	3		ENSP00000459092.1	I3L1T7
CHRNB1	ENST00000575379.1 linkuse as main transcript	c.-34C>G		5_prime_UTR_variant	1/2	2		ENSP00000461751.1	I3L535

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151930

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000190

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461826

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727218

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000374

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151930

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74164

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000190

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.61

CADD

Benign

DANN

Benign

0.79

DEOGEN2

Benign

0.19

T;.;.

Eigen

Benign

-0.55

Eigen_PC

Benign

-0.58

FATHMM_MKL

Benign

0.44

M_CAP

Benign

0.0099

MetaRNN

Benign

0.13

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.68

N;.;.

MutationTaster

Benign

1.0

D;N;N;N

PrimateAI

Benign

0.42

PROVEAN

Benign

-2.1

N;N;.

REVEL

Benign

0.090

Sift

Benign

0.061

T;T;.

Sift4G

Benign

0.30

T;T;T

Polyphen

0.75

P;.;.

Vest4

0.23

MutPred

0.47

Loss of ubiquitination at K457 (P = 0.1066);.;.;

MVP

0.47

MPC

0.42

ClinPred

0.50

GERP RS

-1.4

Varity_R

0.16

gMVP

0.54

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over