NM_004281.4(BAG3):c.368G>A (p.Arg123Gln) AND multiple conditions

Germline classification:: Uncertain significance (2 submissions)
Last evaluated:: Feb 1, 2024
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

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:: RCV001049731.7

Allele description [Variation Report for NM_004281.4(BAG3):c.368G>A (p.Arg123Gln)]

NM_004281.4(BAG3):c.368G>A (p.Arg123Gln)

Gene:

BAG3:BAG cochaperone 3 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

10q26.11

Genomic location:

Preferred name:

NM_004281.4(BAG3):c.368G>A (p.Arg123Gln)

HGVS:

NC_000010.11:g.119670038G>A
NG_016125.1:g.23669G>A
NM_004281.4:c.368G>AMANE SELECT
NP_004272.2:p.Arg123Gln
NP_004272.2:p.Arg123Gln
LRG_742t1:c.368G>A
LRG_742:g.23669G>A
LRG_742p1:p.Arg123Gln
NC_000010.10:g.121429550G>A
NM_004281.3:c.368G>A

Protein change:

R123Q

Links:

dbSNP: rs199991063

NCBI 1000 Genomes Browser:

rs199991063

Molecular consequence:

NM_004281.4:c.368G>A - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Myofibrillar myopathy 6
Synonyms:: Myofibrillar myopathy, BAG3-related
Identifiers:: MONDO: MONDO:0013061; MedGen: C2751831; Orphanet: 199340; OMIM: 612954

Name:: Dilated cardiomyopathy 1HH (CMD1HH)
Identifiers:: MONDO: MONDO:0013479; MedGen: C3151293; Orphanet: 154; OMIM: 613881

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV001213799	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Feb 1, 2024)	germline	clinical testing	PubMed (2) [See all records that cite these PMIDs] 28359509, 28492532
SCV002778438	Fulgent Genetics, Fulgent Genetics	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Aug 17, 2021)	unknown	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

SCV001213799

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Feb 1, 2024)

germline

clinical testing

PubMed (2)
[See all records that cite these PMIDs]

SCV002778438

Fulgent Genetics, Fulgent Genetics

criteria provided, single submitter

(ACMG Guidelines, 2015)

Uncertain significance
(Aug 17, 2021)

unknown

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
not provided	unknown	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Autosomal Recessive Cardiomyopathy Presenting as Acute Myocarditis.

Belkaya S, Kontorovich AR, Byun M, Mulero-Navarro S, Bajolle F, Cobat A, Josowitz R, Itan Y, Quint R, Lorenzo L, Boucherit S, Stoven C, Di Filippo S, Abel L, Zhang SY, Bonnet D, Gelb BD, Casanova JL.

J Am Coll Cardiol. 2017 Apr 4;69(13):1653-1665. doi: 10.1016/j.jacc.2017.01.043.

PubMed [citation]

PMID:: 28359509
PMCID:: PMC5551973

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

See all PubMed Citations (3)

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV001213799.5

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (2)

Description

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 123 of the BAG3 protein (p.Arg123Gln). This variant is present in population databases (rs199991063, gnomAD 0.006%). This missense change has been observed in individual(s) with acute myocarditis (PMID: 28359509). ClinVar contains an entry for this variant (Variation ID: 191606). 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 BAG3 protein function with a negative predictive value of 80%. 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

From Fulgent Genetics, Fulgent Genetics, SCV002778438.1

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

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

Last Updated: Sep 29, 2024

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