rs766441081

Variant names:

• chr2-214809557-G-A
• rs766441081
• NM_000465.4:c.13C>T

Your query was ambiguous. Multiple possible variants found:

• chr2-214809557-G-A
• chr2-214809557-G-C
• chr2-214809557-G-T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 4P and 2B. PM1 PM2 BP4_Moderate

The NM_000465.4(BARD1):​c.13C>T​(p.Arg5Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000284 in 1,407,832 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 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. R5P) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 34)
  • Exomes 𝑓: 0.0000028 (0 hom.)
• Consequence: BARD1 NM_000465.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:4
• Conservation: PhyloP100: 0.365
• Publications: 4 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]

SNHG31 (HGNC:54196): (small nucleolar RNA host gene 31)

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM1: In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 36 uncertain in NM_000465.4
• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.10863826).

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.13C>T	p.Arg5Trp	missense	Exon 1 of 11	NP_000456.2
	BARD1	NM_001282543.2		c.13C>T	p.Arg5Trp	missense	Exon 1 of 10	NP_001269472.1
	BARD1	NM_001282545.2		c.13C>T	p.Arg5Trp	missense	Exon 1 of 7	NP_001269474.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BARD1	ENST00000260947.9	TSL:1 MANE Select	c.13C>T	p.Arg5Trp	missense	Exon 1 of 11	ENSP00000260947.4
	BARD1	ENST00000617164.5	TSL:1	c.13C>T	p.Arg5Trp	missense	Exon 1 of 10	ENSP00000480470.1
	BARD1	ENST00000613706.5	TSL:1	c.13C>T	p.Arg5Trp	missense	Exon 1 of 11	ENSP00000484976.2

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD2 exomes AF: 0.00 AC: 0 AN: 166790 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000284 AC: 4 AN: 1407832 Hom.: 0 Cov.: 73 AF XY: 0.00000144 AC XY: 1 AN XY: 696652

African (AFR) AF: 0.00 AC: 0 AN: 32152

American (AMR) AF: 0.00 AC: 0 AN: 39338

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25374

East Asian (EAS) AF: 0.00 AC: 0 AN: 36942

South Asian (SAS) AF: 0.00 AC: 0 AN: 82032

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 40404

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5506

European-Non Finnish (NFE) AF: 0.00000184 AC: 2 AN: 1087648

Other (OTH) AF: 0.0000342 AC: 2 AN: 58436

GnomAD4 genome Cov.: 34

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	2	-	Familial cancer of breast (2)
-	2	-	Hereditary cancer-predisposing syndrome (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Uncertain	0.048	T
BayesDel_noAF	Benign	-0.17
CADD	Benign	16
DANN	Uncertain	1.0
DEOGEN2	Benign	0.067	T
Eigen	Benign	-0.92
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.054	N
LIST_S2	Benign	0.79	T
M_CAP	Benign	0.022	T
MetaRNN	Benign	0.11	T
MetaSVM	Benign	-0.54	T
MutationAssessor	Benign	0.0	N
PhyloP100		0.36
PrimateAI	Uncertain	0.63	T
PROVEAN	Benign	-0.84	N
REVEL	Benign	0.27
Sift	Uncertain	0.014	D
Sift4G	Pathogenic	0.0	D
Polyphen		0.86	P
Vest4		0.18
MutPred		0.14		Loss of glycosylation at P7 (P = 0.2145)
MVP		0.72
MPC		0.089
ClinPred		0.30	T
GERP RS		0.23
PromoterAI		-0.14	Neutral
Varity_R		0.086
gMVP		0.35
Mutation Taster		=100/0	polymorphism

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

Other links and lift over

dbSNP: rs766441081; hg19: chr2-215674281;