NM_000465.4:c.1972C>T

Variant names:

• chr2-214730440-G-A
• rs3738888
• NM_000465.4:c.1972C>T

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BS1 BS2

The NM_000465.4(BARD1):​c.1972C>T​(p.Arg658Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00855 in 1,613,728 control chromosomes in the GnomAD database, including 69 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R658H) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.0073 (15 hom., cov: 32)
  • Exomes 𝑓: 0.0087 (54 hom.)
• Consequence: BARD1 NM_000465.4 missense
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts U:1 B:19
• Conservation: PhyloP100: 5.27
• Publications: 55 publications found

Genes affected

BARD1 (HGNC:952): (BRCA1 associated RING domain 1) This gene encodes a protein which interacts with the N-terminal region of BRCA1. In addition to its ability to bind BRCA1 in vivo and in vitro, it shares homology with the 2 most conserved regions of BRCA1: the N-terminal RING motif and the C-terminal BRCT domain. The RING motif is a cysteine-rich sequence found in a variety of proteins that regulate cell growth, including the products of tumor suppressor genes and dominant protooncogenes. This protein also contains 3 tandem ankyrin repeats. The BARD1/BRCA1 interaction is disrupted by tumorigenic amino acid substitutions in BRCA1, implying that the formation of a stable complex between these proteins may be an essential aspect of BRCA1 tumor suppression. This protein may be the target of oncogenic mutations in breast or ovarian cancer. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2013]

BARD1 Gene-Disease associations (from GenCC):

• breast cancer

  Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
• hereditary breast carcinoma

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen
• familial ovarian cancer

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen
• hereditary nonpolyposis colon cancer

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen

ACMG classification

Our verdict: Benign. The variant received -20 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.0056836605).
• BP6: Variant 2-214730440-G-A is Benign according to our data. Variant chr2-214730440-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 136500.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BS1: Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.00731 (1113/152168) while in subpopulation EAS AF = 0.00986 (51/5170). AF 95% confidence interval is 0.00787. There are 15 homozygotes in GnomAd4. There are 582 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
• BS2: High AC in GnomAd4 at 1113 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BARD1	NM_000465.4	c.1972C>T	p.Arg658Cys	missense_variant	Exon 10 of 11	ENST00000260947.9	NP_000456.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BARD1	ENST00000260947.9	c.1972C>T	p.Arg658Cys	missense_variant	Exon 10 of 11	1	NM_000465.4	ENSP00000260947.4

Frequencies

GnomAD3 genomes AF: 0.00733 AC: 1114 AN: 152050 Hom.: 15 Cov.: 32

Gnomad AFR AF: 0.00220

Gnomad AMI AF: 0.122

Gnomad AMR AF: 0.00661

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00984

Gnomad SAS AF: 0.00394

Gnomad FIN AF: 0.0151

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.00846

Gnomad OTH AF: 0.00239

GnomAD2 exomes AF: 0.00843 AC: 2118 AN: 251368 AF XY: 0.00785

Gnomad AFR exome AF: 0.00203

Gnomad AMR exome AF: 0.0125

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0115

Gnomad FIN exome AF: 0.0128

Gnomad NFE exome AF: 0.00866

Gnomad OTH exome AF: 0.00865

GnomAD4 exome AF: 0.00868 AC: 12682 AN: 1461560 Hom.: 54 Cov.: 30 AF XY: 0.00836 AC XY: 6077 AN XY: 727102

African (AFR) AF: 0.00137 AC: 46 AN: 33470

American (AMR) AF: 0.0112 AC: 500 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.0000766 AC: 2 AN: 26126

East Asian (EAS) AF: 0.0103 AC: 409 AN: 39660

South Asian (SAS) AF: 0.00452 AC: 390 AN: 86252

European-Finnish (FIN) AF: 0.0126 AC: 675 AN: 53400

Middle Eastern (MID) AF: 0.000867 AC: 5 AN: 5764

European-Non Finnish (NFE) AF: 0.00922 AC: 10254 AN: 1111784

Other (OTH) AF: 0.00664 AC: 401 AN: 60382

GnomAD4 genome AF: 0.00731 AC: 1113 AN: 152168 Hom.: 15 Cov.: 32 AF XY: 0.00782 AC XY: 582 AN XY: 74388

African (AFR) AF: 0.00219 AC: 91 AN: 41524

American (AMR) AF: 0.00667 AC: 102 AN: 15296

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00986 AC: 51 AN: 5170

South Asian (SAS) AF: 0.00374 AC: 18 AN: 4816

European-Finnish (FIN) AF: 0.0151 AC: 160 AN: 10580

Middle Eastern (MID) AF: 0.00340 AC: 1 AN: 294

European-Non Finnish (NFE) AF: 0.00844 AC: 574 AN: 67992

Other (OTH) AF: 0.00236 AC: 5 AN: 2116

Alfa AF: 0.00821 Hom.: 24

Bravo AF: 0.00749

TwinsUK AF: 0.00890 AC: 33

ALSPAC AF: 0.0150 AC: 58

ESP6500AA AF: 0.00227 AC: 10

ESP6500EA AF: 0.00779 AC: 67

ExAC AF: 0.00793 AC: 963

Asia WGS AF: 0.00722 AC: 26 AN: 3478

EpiCase AF: 0.00725

EpiControl AF: 0.00705

ClinVar

Significance: Benign/Likely benign

Submissions summary: Uncertain:1 Benign:19

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Familial cancer of breast Benign:6

Feb 24, 2023

Myriad Genetics, Inc.

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered benign. This variant has been observed at a population frequency that is significantly greater than expected given the associated disease prevalence and penetrance. This variant is strongly associated with less severe personal and family histories of cancer, typical for individuals without pathogenic variants in this gene [PMID: 25085752].

Jul 07, 2023

KCCC/NGS Laboratory, Kuwait Cancer Control Center

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Jun 03, 2016

Counsyl

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com.

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign.

Feb 04, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Nov 11, 2023

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

not specified Benign:5

May 27, 2020

Genetic Services Laboratory, University of Chicago

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Oct 14, 2013

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.

Nov 22, 2016

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Mar 04, 2025

Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Oct 02, 2021

Quest Diagnostics Nichols Institute San Juan Capistrano

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Hereditary cancer-predisposing syndrome Benign:4

May 30, 2021

Sema4, Sema4

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: curation

Jun 26, 2014

Ambry Genetics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as 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.

Sep 27, 2021

Institute for Biomarker Research, Medical Diagnostic Laboratories, L.L.C.

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

Jan 02, 2022

Color Diagnostics, LLC DBA Color Health

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Triple-Negative Breast Cancer Finding Uncertain:1

Feb 01, 2015

Lab. Molecular Oncology, VUB, Free University of Brussels

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

not provided Benign:1

Aug 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

BARD1: BP4, BS1, BS2

Malignant tumor of breast Benign:1

Department of Pathology and Laboratory Medicine, Sinai Health System

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

The BARD1 p.Arg658Cys variant was identified in 9 of 2368 proband chromosomes (frequency: 0.004) from individuals or families with breast and/or ovarian cancer (Karppinen 2004, Klonowska 2015, Vahteristo 2006). The variant was also identified in the following databases: dbSNP (ID: rs3738888) as “With other allele”, ClinVar (6x, as benign by GeneDx, Ambry Genetics, Invitae, Color Genomics.Inc, and as likely benign by Illumina Clinical Services, Counsyl), Clinvitae (4x, as benign and likely benign), and Zhejiang Colon Cancer Database (6x, as probably pathogenic). The variant was not identified in Cosmic nor MutDB databases. The variant was identified in control databases in 2270 (11 homozygous) of 277098 chromosomes at a frequency of 0.008 in the following populations: Finnish in 336 of 25784 chromosomes (freq. 0.013), Latino in 425 of 34414 chromosomes (freq. 0.012), East Asian in 206 of 18868 chromosomes (freq. 0.01), European in 1067 of 126610 chromosomes (freq. 0.0084), other in 53 of 6462 chromosomes (freq. 0.008), South Asian in 125 of 30782 chromosomes (freq. 0.004), and African in 58 of 2403 chromosomes (freq. 0.0024), increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Consortium Feb 27, 2017). Although the p.Arg658Cys residue is not conserved in mammals and other organisms, computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) suggest that the variant may impact the protein. The variant occurs outside of the splicing consensus sequence and in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) do not predict a difference in splicing. There are conflicting predictions in the literature regarding the clinical significance of the p.Arg658Cys variant. Some studies refer to this variant as potentially pathological (Klonowska 2015), but functional studies do not predict clinical significance for this variant although it is in a functional domain (Lee 2015). In another study this variant has been utilized as putative benign polymorphism in multiple functional assays (Sauer 2005). A co-occurring pathogenic BRCA1 variant (c.709G>T, p.Glu237X) was identified in 1 individual with breast cancer by our laboratory, increasing the likelihood that p.Arg658Cys variant does not have clinical significance. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign.

Hereditary cancer Benign:1

Jan 23, 2024

Mendelics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Hereditary breast ovarian cancer syndrome Benign:1

Apr 19, 2022

National Health Laboratory Service, Universitas Academic Hospital and University of the Free State

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.10
BayesDel_addAF	Benign	-0.38	T
BayesDel_noAF	Benign	-0.30
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.39	T;.;.;.;T;.;.
Eigen	Uncertain	0.45
Eigen_PC	Uncertain	0.54
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.97	D;D;D;D;D;.;.
MetaRNN	Benign	0.0057	T;T;T;T;T;T;T
MetaSVM	Benign	-0.90	T
MutationAssessor	Uncertain	2.1	M;.;.;.;.;.;.
PhyloP100		5.3
PrimateAI	Benign	0.24	T
PROVEAN	Uncertain	-4.0	D;.;.;.;.;.;D
REVEL	Benign	0.10
Sift	Uncertain	0.0080	D;.;.;.;.;.;D
Sift4G	Uncertain	0.0030	D;D;D;D;D;D;D
Vest4		0.32
ClinPred		0.049	T
GERP RS		5.8
PromoterAI		-0.060	Neutral
Varity_R		0.40
gMVP		0.51
Mutation Taster		=75/25	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs3738888; hg19: chr2-215595164; COSMIC: COSV53616840;