rs140614930

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 1P and 5B. PP3BP6BS2

The NM_201596.3(CACNB2):​c.1018G>A​(p.Ala340Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000118 in 1,613,530 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A340V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

CACNB2
NM_201596.3 missense

Scores

5
6
7

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 8.13

Publications

5 publications found
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 Gene-Disease associations (from GenCC):
  • Brugada syndrome 4
    Inheritance: AD, Unknown Classification: LIMITED, NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics, Laboratory for Molecular Medicine
  • Brugada syndrome 1
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
  • hypertrophic cardiomyopathy
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
  • short QT syndrome
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.77
BP6
Variant 10-18527661-G-A is Benign according to our data. Variant chr10-18527661-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 573799.
BS2
High AC in GnomAd4 at 9 AD,Unknown gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_201596.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNB2
NM_201596.3
MANE Select
c.1018G>Ap.Ala340Thr
missense
Exon 10 of 14NP_963890.2
CACNB2
NM_201590.3
MANE Plus Clinical
c.856G>Ap.Ala286Thr
missense
Exon 9 of 13NP_963884.2
CACNB2
NM_201597.3
c.946G>Ap.Ala316Thr
missense
Exon 10 of 14NP_963891.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNB2
ENST00000324631.13
TSL:1 MANE Select
c.1018G>Ap.Ala340Thr
missense
Exon 10 of 14ENSP00000320025.8
CACNB2
ENST00000377329.10
TSL:1 MANE Plus Clinical
c.856G>Ap.Ala286Thr
missense
Exon 9 of 13ENSP00000366546.4
CACNB2
ENST00000352115.10
TSL:1
c.946G>Ap.Ala316Thr
missense
Exon 10 of 14ENSP00000344474.6

Frequencies

GnomAD3 genomes
AF:
0.0000592
AC:
9
AN:
152076
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000193
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000159
AC:
4
AN:
251210
AF XY:
0.00000737
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000684
AC:
10
AN:
1461454
Hom.:
0
Cov.:
30
AF XY:
0.00000688
AC XY:
5
AN XY:
727080
show subpopulations
African (AFR)
AF:
0.000149
AC:
5
AN:
33468
American (AMR)
AF:
0.0000224
AC:
1
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53310
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
9.00e-7
AC:
1
AN:
1111720
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60384
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.530
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000592
AC:
9
AN:
152076
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74294
show subpopulations
African (AFR)
AF:
0.000193
AC:
8
AN:
41408
American (AMR)
AF:
0.0000655
AC:
1
AN:
15256
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000154
Hom.:
0
Bravo
AF:
0.0000982
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000247
AC:
3

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Brugada syndrome 4 (2)
-
-
1
Cardiovascular phenotype (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Uncertain
0.033
T
BayesDel_noAF
Uncertain
0.050
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.27
T
Eigen
Uncertain
0.57
Eigen_PC
Uncertain
0.64
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.87
D
M_CAP
Benign
0.042
D
MetaRNN
Pathogenic
0.77
D
MetaSVM
Uncertain
0.045
D
MutationAssessor
Benign
1.4
L
PhyloP100
8.1
PrimateAI
Pathogenic
0.91
D
PROVEAN
Benign
-2.0
N
REVEL
Pathogenic
0.67
Sift
Benign
0.27
T
Sift4G
Benign
0.30
T
Polyphen
0.92
P
Vest4
0.54
MVP
0.90
MPC
0.78
ClinPred
0.57
D
GERP RS
5.7
Varity_R
0.18
gMVP
0.58
Mutation Taster
=20/80
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs140614930; hg19: chr10-18816590; COSMIC: COSV99994302; COSMIC: COSV99994302; API