rs772911828

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4BP6BS2

The NM_201596.3(CACNB2):​c.1874G>A​(p.Arg625His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000992 in 1,613,602 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.000013 ( 0 hom., cov: 30)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

CACNB2
NM_201596.3 missense

Scores

1
10
8

Clinical Significance

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

Conservation

PhyloP100: 7.28
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.3116057).
BP6
Variant 10-18539615-G-A is Benign according to our data. Variant chr10-18539615-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 537374.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.
BS2
High AC in GnomAdExome4 at 14 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CACNB2NM_201596.3 linkc.1874G>A p.Arg625His missense_variant Exon 14 of 14 ENST00000324631.13 NP_963890.2 Q08289-1
CACNB2NM_201590.3 linkc.1712G>A p.Arg571His missense_variant Exon 13 of 13 ENST00000377329.10 NP_963884.2 Q08289-3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CACNB2ENST00000324631.13 linkc.1874G>A p.Arg625His missense_variant Exon 14 of 14 1 NM_201596.3 ENSP00000320025.8 Q08289-1
CACNB2ENST00000377329.10 linkc.1712G>A p.Arg571His missense_variant Exon 13 of 13 1 NM_201590.3 ENSP00000366546.4 Q08289-3

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151924
Hom.:
0
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000358
AC:
9
AN:
251108
Hom.:
0
AF XY:
0.0000295
AC XY:
4
AN XY:
135720
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000174
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:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000958
AC:
14
AN:
1461678
Hom.:
0
Cov.:
35
AF XY:
0.00000688
AC XY:
5
AN XY:
727120
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000895
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.00000630
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151924
Hom.:
0
Cov.:
30
AF XY:
0.0000270
AC XY:
2
AN XY:
74174
show subpopulations
Gnomad4 AFR
AF:
0.0000242
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000564
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000247
AC:
3

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Brugada syndrome 4 Uncertain:1
Aug 03, 2020
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces arginine with histidine at codon 571 of the CACNB2 protein (p.Arg571His). The arginine residue is highly conserved and there is a small physicochemical difference between arginine and histidine. This variant is present in population databases (rs772911828, ExAC 0.005%). This variant has not been reported in the literature in individuals with CACNB2-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Cardiovascular phenotype Benign:1
Oct 17, 2022
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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
0.11
BayesDel_addAF
Uncertain
0.013
T
BayesDel_noAF
Uncertain
0.050
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.16
T;.;T;.;.;.;T;T;.;.;.;T;.;.
Eigen
Uncertain
0.54
Eigen_PC
Uncertain
0.49
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.91
D;D;D;.;D;D;D;D;D;D;D;D;D;D
M_CAP
Benign
0.060
D
MetaRNN
Benign
0.31
T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Uncertain
0.42
D
MutationAssessor
Benign
1.6
L;.;.;.;.;.;.;.;.;.;.;.;.;.
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-0.96
N;N;N;.;.;N;.;.;N;N;N;.;N;N
REVEL
Uncertain
0.38
Sift
Uncertain
0.0010
D;D;D;.;.;D;.;.;D;D;D;.;D;T
Sift4G
Uncertain
0.032
D;D;D;.;.;D;D;D;D;D;D;D;D;.
Polyphen
1.0
D;D;D;.;.;D;.;.;.;D;D;.;.;.
Vest4
0.50
MutPred
0.45
Gain of ubiquitination at K629 (P = 0.0301);.;.;.;.;.;.;.;.;.;.;.;.;.;
MVP
0.93
MPC
0.80
ClinPred
0.34
T
GERP RS
5.7
Varity_R
0.13
gMVP
0.23

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.

Other links and lift over

dbSNP: rs772911828; hg19: chr10-18828544; API