Variant 10-18140737-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PVS1_SupportingBS2

The NM_201596.3(CACNB2):c.1A>G(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000314 in 1,592,232 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

CACNB2
NM_201596.3 start_lost

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.00

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 Likely_benign. Variant got -3 ACMG points.

PVS1

Start lost variant, no pathogenic variants between lost start and next in-frame start position. Next in-frame start position is after 6 codons. Genomic position: 18140752. Lost 0.008 part of the original CDS.

BS2

High AC in GnomAdExome4 at 46 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CACNB2	NM_201596.3 link	c.1A>G	p.Met1?	start_lost	Exon 1 of 14	ENST00000324631.13	NP_963890.2	Q08289-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CACNB2	ENST00000324631.13 link	c.1A>G	p.Met1?	start_lost	Exon 1 of 14	1	NM_201596.3	ENSP00000320025.8		Q08289-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152008

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:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000192

AC:

AN:

207906

Hom.:

AF XY:

0.0000176

AC XY:

AN XY:

113598

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000110

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000375

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000220

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000319

AC:

AN:

1440224

Hom.:

Cov.:

AF XY:

0.0000266

AC XY:

AN XY:

714336

show subpopulations

Gnomad4 AFR exome

AF:

0.0000301

Gnomad4 AMR exome

AF:

0.0000242

Gnomad4 ASJ exome

AF:

0.0000780

Gnomad4 EAS exome

AF:

0.0000257

Gnomad4 SAS exome

AF:

0.0000726

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000308

Gnomad4 OTH exome

AF:

0.0000168

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152008

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74248

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:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.0000167

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 20, 2016

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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: LOF not a known disease mechanism for this gene; the LMM classified another change at this position as VUS4 in 2015 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Benign

-0.061

BayesDel_noAF

Benign

-0.22

CADD

Benign

DANN

Benign

0.85

DEOGEN2

Benign

0.078

T;.;T

Eigen

Benign

-0.50

Eigen_PC

Benign

-0.50

FATHMM_MKL

Benign

0.53

LIST_S2

Uncertain

0.90

D;D;D

M_CAP

Pathogenic

0.94

MetaRNN

Pathogenic

0.98

D;D;D

MetaSVM

Benign

-0.40

PROVEAN

Benign

-0.84

N;N;N

REVEL

Benign

0.27

Sift

Pathogenic

0.0

D;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

0.0060

B;B;B

Vest4

0.65

MutPred

1.0

Loss of MoRF binding (P = 0.0858);Loss of MoRF binding (P = 0.0858);Loss of MoRF binding (P = 0.0858);

MVP

0.80

ClinPred

0.34

GERP RS

3.0

Varity_R

0.76

gMVP

0.30

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