rs147857449

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_201596.3(CACNB2):​c.1206+6T>C variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00108 in 1,608,896 control chromosomes in the GnomAD database, including 17 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0054 ( 9 hom., cov: 33)
Exomes 𝑓: 0.00063 ( 8 hom. )

Consequence

CACNB2
NM_201596.3 splice_region, intron

Scores

2
Splicing: ADA: 0.004505
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.157

Publications

3 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: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.7).
BP6
Variant 10-18534233-T-C is Benign according to our data. Variant chr10-18534233-T-C is described in ClinVar as Benign. ClinVar VariationId is 299560.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00536 (816/152342) while in subpopulation AFR AF = 0.0183 (760/41574). AF 95% confidence interval is 0.0172. There are 9 homozygotes in GnomAd4. There are 386 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High AC in GnomAd4 at 816 AD,Unknown gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CACNB2NM_201596.3 linkc.1206+6T>C splice_region_variant, intron_variant Intron 11 of 13 ENST00000324631.13 NP_963890.2
CACNB2NM_201590.3 linkc.1044+6T>C splice_region_variant, intron_variant Intron 10 of 12 ENST00000377329.10 NP_963884.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CACNB2ENST00000324631.13 linkc.1206+6T>C splice_region_variant, intron_variant Intron 11 of 13 1 NM_201596.3 ENSP00000320025.8
CACNB2ENST00000377329.10 linkc.1044+6T>C splice_region_variant, intron_variant Intron 10 of 12 1 NM_201590.3 ENSP00000366546.4

Frequencies

GnomAD3 genomes
AF:
0.00535
AC:
814
AN:
152224
Hom.:
9
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0183
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00255
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00430
GnomAD2 exomes
AF:
0.00151
AC:
379
AN:
251214
AF XY:
0.00117
show subpopulations
Gnomad AFR exome
AF:
0.0191
Gnomad AMR exome
AF:
0.00127
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000185
Gnomad OTH exome
AF:
0.000654
GnomAD4 exome
AF:
0.000633
AC:
922
AN:
1456554
Hom.:
8
Cov.:
29
AF XY:
0.000603
AC XY:
437
AN XY:
725036
show subpopulations
African (AFR)
AF:
0.0191
AC:
638
AN:
33374
American (AMR)
AF:
0.00132
AC:
59
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26094
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39654
South Asian (SAS)
AF:
0.000128
AC:
11
AN:
86144
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53366
Middle Eastern (MID)
AF:
0.00226
AC:
13
AN:
5752
European-Non Finnish (NFE)
AF:
0.0000921
AC:
102
AN:
1107238
Other (OTH)
AF:
0.00164
AC:
99
AN:
60212
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.481
Heterozygous variant carriers
0
44
88
131
175
219
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
22
44
66
88
110
<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:
0.00536
AC:
816
AN:
152342
Hom.:
9
Cov.:
33
AF XY:
0.00518
AC XY:
386
AN XY:
74486
show subpopulations
African (AFR)
AF:
0.0183
AC:
760
AN:
41574
American (AMR)
AF:
0.00255
AC:
39
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000118
AC:
8
AN:
68032
Other (OTH)
AF:
0.00425
AC:
9
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
46
91
137
182
228
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00305
Hom.:
4
Bravo
AF:
0.00638
Asia WGS
AF:
0.00115
AC:
4
AN:
3478
EpiCase
AF:
0.000273
EpiControl
AF:
0.000533

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Brugada syndrome 4 Benign:2
Jan 31, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Oct 20, 2020
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

not provided Benign:1
Mar 03, 2015
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.70
CADD
Benign
0.26
DANN
Benign
0.89
PhyloP100
-0.16
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0045
dbscSNV1_RF
Benign
0.094
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

Other links and lift over

dbSNP: rs147857449; hg19: chr10-18823162; API