rs764746353

Variant names:

• chr2-214792336-T-C
• rs764746353
• NM_000465.4:c.325A>G

Your query was ambiguous. Multiple possible variants found:

• chr2-214792336-T-C
• chr2-214792336-T-G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 1P and 1B. PP3 BS2_Supporting

The NM_000465.4(BARD1):​c.325A>G​(p.Ser109Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,461,378 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/24 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S109R) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 30)
  • Exomes 𝑓: 0.0000041 (0 hom.)
• Consequence: BARD1 NM_000465.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 2.68
• Publications: 3 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: Uncertain_significance. The variant received 0 ACMG points.

• PP3: Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
• BS2: High AC in GnomAdExome4 at 6 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000465.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BARD1	NM_000465.4	MANE Select	c.325A>G	p.Ser109Gly	missense	Exon 3 of 11	NP_000456.2
	BARD1	NM_001282543.2		c.268A>G	p.Ser90Gly	missense	Exon 2 of 10	NP_001269472.1
	BARD1	NM_001282549.2		c.325A>G	p.Ser109Gly	missense	Exon 3 of 5	NP_001269478.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BARD1	ENST00000260947.9	TSL:1 MANE Select	c.325A>G	p.Ser109Gly	missense	Exon 3 of 11	ENSP00000260947.4
	BARD1	ENST00000617164.5	TSL:1	c.268A>G	p.Ser90Gly	missense	Exon 2 of 10	ENSP00000480470.1
	BARD1	ENST00000613706.5	TSL:1	c.325A>G	p.Ser109Gly	missense	Exon 3 of 11	ENSP00000484976.2

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome AF: 0.00000411 AC: 6 AN: 1461378 Hom.: 0 Cov.: 32 AF XY: 0.00000550 AC XY: 4 AN XY: 726976

African (AFR) AF: 0.00 AC: 0 AN: 33434

American (AMR) AF: 0.00 AC: 0 AN: 44638

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26120

East Asian (EAS) AF: 0.00 AC: 0 AN: 39676

South Asian (SAS) AF: 0.00 AC: 0 AN: 86242

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53388

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.00000450 AC: 5 AN: 1111756

Other (OTH) AF: 0.0000166 AC: 1 AN: 60360

GnomAD4 genome Cov.: 30

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	Familial cancer of breast (1)
-	1	-	Hereditary cancer-predisposing syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.081
BayesDel_addAF	Benign	-0.069	T
BayesDel_noAF	Benign	-0.34
CADD	Uncertain	25
DANN	Benign	0.93
DEOGEN2	Benign	0.12	T
Eigen	Benign	-0.39
Eigen_PC	Benign	-0.23
FATHMM_MKL	Uncertain	0.77	D
LIST_S2	Benign	0.79	T
M_CAP	Benign	0.027	D
MetaRNN	Benign	0.19	T
MetaSVM	Benign	-0.79	T
MutationAssessor	Uncertain	2.8	M
PhyloP100		2.7
PrimateAI	Benign	0.40	T
PROVEAN	Benign	-1.6	N
REVEL	Benign	0.16
Sift	Benign	0.28	T
Sift4G	Benign	0.10	T
Polyphen		0.034	B
Vest4		0.41
MutPred		0.15		Loss of disorder (P = 0.086)
MVP		0.91
MPC		0.073
ClinPred		0.34	T
GERP RS		4.1
Varity_R		0.16
gMVP		0.24
Mutation Taster		=74/26	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.57		Details are displayed if max score is > 0.2
DS_DG_spliceai		0.57		Position offset: 0

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

Other links and lift over

dbSNP: rs764746353; hg19: chr2-215657060;