NM_201596.3(CACNB2):c.1639C>A (p.Arg547Ser) AND Brugada syndrome 4

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Oct 13, 2023
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV001062513.7

Allele description [Variation Report for NM_201596.3(CACNB2):c.1639C>A (p.Arg547Ser)]

NM_201596.3(CACNB2):c.1639C>A (p.Arg547Ser)

Gene:

CACNB2:calcium voltage-gated channel auxiliary subunit beta 2 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

10p12.31

Genomic location:

Preferred name:

NM_201596.3(CACNB2):c.1639C>A (p.Arg547Ser)

HGVS:

NC_000010.11:g.18539380C>A
NG_016195.1:g.403704C>A
NM_000724.4:c.1474C>A
NM_001167945.2:c.1441C>A
NM_001330060.2:c.1360C>A
NM_201570.3:c.1495C>A
NM_201571.4:c.1555C>A
NM_201572.4:c.1483C>A
NM_201590.3:c.1477C>A
NM_201593.3:c.1525C>A
NM_201596.3:c.1639C>AMANE SELECT
NM_201597.3:c.1567C>A
NP_000715.2:p.Arg492Ser
NP_001161417.1:p.Arg481Ser
NP_001316989.1:p.Arg454Ser
NP_963864.1:p.Arg499Ser
NP_963865.2:p.Arg519Ser
NP_963866.2:p.Arg495Ser
NP_963884.2:p.Arg493Ser
NP_963887.2:p.Arg509Ser
NP_963890.2:p.Arg547Ser
NP_963891.1:p.Arg523Ser
LRG_381t1:c.1639C>A
LRG_381t2:c.1477C>A
LRG_381:g.403704C>A
LRG_381p1:p.Arg547Ser
LRG_381p2:p.Arg493Ser
NC_000010.10:g.18828309C>A
NM_201590.2:c.1477C>A

Protein change:

R454S

Links:

dbSNP: rs774654438

NCBI 1000 Genomes Browser:

rs774654438

Molecular consequence:

NM_000724.4:c.1474C>A - missense variant - [Sequence Ontology: SO:0001583]
NM_001167945.2:c.1441C>A - missense variant - [Sequence Ontology: SO:0001583]
NM_001330060.2:c.1360C>A - missense variant - [Sequence Ontology: SO:0001583]
NM_201570.3:c.1495C>A - missense variant - [Sequence Ontology: SO:0001583]
NM_201571.4:c.1555C>A - missense variant - [Sequence Ontology: SO:0001583]
NM_201572.4:c.1483C>A - missense variant - [Sequence Ontology: SO:0001583]
NM_201590.3:c.1477C>A - missense variant - [Sequence Ontology: SO:0001583]
NM_201593.3:c.1525C>A - missense variant - [Sequence Ontology: SO:0001583]
NM_201596.3:c.1639C>A - missense variant - [Sequence Ontology: SO:0001583]
NM_201597.3:c.1567C>A - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Brugada syndrome 4 (BRGDA4)
Identifiers:: MONDO: MONDO:0012743; MedGen: C2678477; Orphanet: 130; OMIM: 611876

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV001227319	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Oct 13, 2023)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV001227319

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Oct 13, 2023)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group., Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240. doi: 10.1038/s41436-019-0624-9.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV001227319.5

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

Description

This sequence change replaces arginine, which is basic and polar, with serine, which is neutral and polar, at codon 493 of the CACNB2 protein (p.Arg493Ser). This variant is present in population databases (no rsID available, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with CACNB2-related conditions. ClinVar contains an entry for this variant (Variation ID: 856940). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt CACNB2 protein function. 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.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Sep 29, 2024

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