rs957472472

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 4P and 4B. PP3_StrongBS2

The NM_000465.4(BARD1):​c.1388C>T​(p.Thr463Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000891 in 1,458,750 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

BARD1
NM_000465.4 missense

Scores

11
6
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 8.89
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.979
BS2
High AC in GnomAdExome4 at 13 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BARD1NM_000465.4 linkc.1388C>T p.Thr463Ile missense_variant Exon 5 of 11 ENST00000260947.9 NP_000456.2 Q99728-1A0AVN2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BARD1ENST00000260947.9 linkc.1388C>T p.Thr463Ile missense_variant Exon 5 of 11 1 NM_000465.4 ENSP00000260947.4 Q99728-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251308
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135824
show subpopulations
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000891
AC:
13
AN:
1458750
Hom.:
0
Cov.:
30
AF XY:
0.00000413
AC XY:
3
AN XY:
725914
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000108
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Familial cancer of breast Uncertain:2
Nov 15, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces threonine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 463 of the BARD1 protein (p.Thr463Ile). This variant is present in population databases (no rsID available, gnomAD 0.0009%). This missense change has been observed in individual(s) with BARD1-related conditions (PMID: 26315354, 34326862). ClinVar contains an entry for this variant (Variation ID: 460703). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. -

Sep 21, 2023
Baylor Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Uncertain:2
Jan 25, 2019
Color Diagnostics, LLC DBA Color Health
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Oct 14, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.T463I variant (also known as c.1388C>T), located in coding exon 5 of the BARD1 gene, results from a C to T substitution at nucleotide position 1388. The threonine at codon 463 is replaced by isoleucine, an amino acid with similar properties. This alteration has been identified in individuals diagnosed with breast and/or ovarian cancer (Ramus SJ et al. J Natl Cancer Inst, 2015 Nov;107:; Bhai P et al. Front Genet, 2021 Jul;12:698595). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -

not provided Uncertain:1
Nov 17, 2017
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.92
BayesDel_addAF
Pathogenic
0.42
D
BayesDel_noAF
Pathogenic
0.37
CADD
Pathogenic
30
DANN
Uncertain
1.0
DEOGEN2
Benign
0.31
T;.
Eigen
Pathogenic
0.93
Eigen_PC
Pathogenic
0.86
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.97
D;D
M_CAP
Uncertain
0.28
D
MetaRNN
Pathogenic
0.98
D;D
MetaSVM
Uncertain
0.51
D
MutationAssessor
Pathogenic
3.2
M;.
PrimateAI
Uncertain
0.64
T
PROVEAN
Pathogenic
-5.0
D;.
REVEL
Pathogenic
0.88
Sift
Pathogenic
0.0
D;.
Sift4G
Uncertain
0.0060
D;D
Polyphen
1.0
D;.
Vest4
0.95
MutPred
0.89
Loss of disorder (P = 0.0606);.;
MVP
0.93
MPC
0.45
ClinPred
1.0
D
GERP RS
5.0
Varity_R
0.91
gMVP
0.83

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs957472472; hg19: chr2-215633963; API