rs150528041

Positions:

chr10-18500945-C-T

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_201596.3(CACNB2):c.590C>T(p.Ser197Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00104 in 1,613,852 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00063 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0011 ( 1 hom. )

Consequence

CACNB2
NM_201596.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:10

Conservation

PhyloP100: 6.17

Variant links:

Genes affected

CACNB2 (HGNC:1402): (calcium voltage-gated channel auxiliary subunit beta 2) This gene encodes a subunit of a voltage-dependent calcium channel protein that is a member of the voltage-gated calcium channel superfamily. The gene product was originally identified as an antigen target in Lambert-Eaton myasthenic syndrome, an autoimmune disorder. Mutations in this gene are associated with Brugada syndrome. Alternatively spliced variants encoding different isoforms have been described. [provided by RefSeq, Feb 2013]

CACNB2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.18280962).

BP6

Variant 10-18500945-C-T is Benign according to our data. Variant chr10-18500945-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 161210.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=7, Benign=1, Uncertain_significance=1}. Variant chr10-18500945-C-T is described in Lovd as [Likely_benign].

BS2

High AC in GnomAd4 at 96 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CACNB2	NM_201596.3 linkuse as main transcript	c.590C>T	p.Ser197Phe	missense_variant	5/14	ENST00000324631.13
CACNB2	NM_201590.3 linkuse as main transcript	c.428C>T	p.Ser143Phe	missense_variant	4/13	ENST00000377329.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CACNB2	ENST00000324631.13 linkuse as main transcript	c.590C>T	p.Ser197Phe	missense_variant	5/14	1	NM_201596.3		Q08289-1
CACNB2	ENST00000377329.10 linkuse as main transcript	c.428C>T	p.Ser143Phe	missense_variant	4/13	1	NM_201590.3		Q08289-3

Frequencies

GnomAD3 genomes

AF:

0.000631

AC:

AN:

152166

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00128

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000510

AC:

128

AN:

251058

Hom.:

AF XY:

0.000560

AC XY:

AN XY:

135698

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00106

Gnomad OTH exome

AF:

0.000490

GnomAD4 exome

AF:

0.00108

AC:

1579

AN:

1461568

Hom.:

Cov.:

AF XY:

0.000993

AC XY:

722

AN XY:

727090

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.000179

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00137

Gnomad4 OTH exome

AF:

0.000812

GnomAD4 genome

AF:

0.000630

AC:

AN:

152284

Hom.:

Cov.:

AF XY:

0.000430

AC XY:

AN XY:

74458

show subpopulations

Gnomad4 AFR

AF:

0.000144

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00128

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.00104

Hom.:

Bravo

AF:

0.000691

TwinsUK

AF:

0.00108

AC:

ALSPAC

AF:

0.00156

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.00140

AC:

ExAC

AF:

0.000502

AC:

EpiCase

AF:

0.00104

EpiControl

AF:

0.000889

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:10

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Benign:5

Likely benign, criteria provided, single submitter	research	Biesecker Lab/Clinical Genomics Section, National Institutes of Health	Jun 24, 2013	- -
Benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Apr 01, 2024	CACNB2: BS1, BS2 -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Mar 11, 2019	This variant is associated with the following publications: (PMID: 26707467, 20817017, 31887354, 24055113, 23414114, 25637381, 24752249, 27711072, 25467552, 30821013, 30847666) -
Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics, Academic Medical Center	-	- -
Likely benign, no assertion criteria provided	clinical testing	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+	-	- -

not specified

Uncertain:1Benign:1

Likely benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Jun 18, 2018	Variant summary: CACNB2 c.428C>T (p.Ser143Phe) results in a non-conservative amino acid change located in the Guanylate kinase/L-type calcium channel beta subunit of the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.00053 in 278284 control chromosomes, predominantly at a frequency of 0.0011 within the Non-Finnish European subpopulation in the gnomAD database, including 1 homozygotes. The observed variant frequency within Non-Finnish European control individuals in the gnomAD database is approximately 352 fold of the estimated maximal expected allele frequency for a pathogenic variant in CACNB2 causing Brugada Syndrome phenotype (3.1e-06), strongly suggesting that the variant is a benign polymorphism found primarily in populations of Non-Finnish European origin. c.428C>T has been reported in the literature in individuals affected with Brugada Syndrome. These report(s) do not provide unequivocal conclusions about association of the variant with Brugada Syndrome. In addition, there was no statistical difference in mean J-point elevation between carriers and non-carriers (Ghouse_2017), also supporting a benign outcome. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Four clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. Multiple laboratories reported the variant with conflicting assessments (2 likely benign and 2 VUS). Based on the evidence outlined above, the variant was classified as likely benign. -
Uncertain significance, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Mar 29, 2016	Variant identified in a genome or exome case(s) and assessed due to predicted null impact of the variant or pathogenic assertions in the literature or databases. Disclaimer: This variant has not undergone full assessment. The following are preliminary notes: Only associated with autism; ExAC: 0.1% (60/65764) European chromosomes -

Brugada syndrome 4

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Invitae	Feb 01, 2024	- -
Likely benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Nov 30, 2021	- -

Brugada syndrome

Uncertain:1

Uncertain significance, no assertion criteria provided

research

CSER _CC_NCGL, University of Washington

Jun 01, 2014

- -

Cardiomyopathy

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Center for Advanced Laboratory Medicine, UC San Diego Health, University of California San Diego

Feb 26, 2019

- -

Cardiovascular phenotype

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 29, 2019

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.29

BayesDel_addAF

Benign

-0.17

BayesDel_noAF

Uncertain

-0.040

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.64

D;.;.;.;.;T;.;.;.;.;.;.;.

Eigen

Pathogenic

0.75

Eigen_PC

Pathogenic

0.79

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.95

D;D;.;D;D;D;D;D;D;D;D;.;D

M_CAP

Uncertain

0.22

MetaRNN

Benign

0.18

T;T;T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Uncertain

0.46

MutationAssessor

Uncertain

2.7

M;M;.;.;.;.;.;.;.;.;.;.;.

MutationTaster

Benign

1.0

D;D;D;D;D;D;D;D;D

PrimateAI

Uncertain

0.75

PROVEAN

Uncertain

-3.6

D;D;.;.;D;.;D;D;D;.;D;.;.

REVEL

Uncertain

0.61

Sift

Uncertain

0.0010

D;D;.;.;D;.;D;D;D;.;D;.;.

Sift4G

Uncertain

0.0030

D;D;.;.;D;D;D;D;D;D;D;.;.

Polyphen

0.92

P;P;.;.;P;.;.;D;P;P;.;.;.

Vest4

0.67

MVP

0.93

MPC

0.72

ClinPred

0.20

GERP RS

5.9

Varity_R

0.52

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

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over