rs1553622210
Positions:
Variant summary
Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2
The NM_000465.4(BARD1):c.1175C>T(p.Pro392Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000821 in 1,461,814 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. P392A) has been classified as Uncertain significance.
Frequency
Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000082 ( 0 hom. )
Consequence
BARD1
NM_000465.4 missense
NM_000465.4 missense
Scores
2
10
7
Clinical Significance
Conservation
PhyloP100: 4.55
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]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -4 ACMG points.
BS2
?
High AC in GnomAdExome4 at 12 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
BARD1 | NM_000465.4 | c.1175C>T | p.Pro392Leu | missense_variant | 4/11 | ENST00000260947.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
BARD1 | ENST00000260947.9 | c.1175C>T | p.Pro392Leu | missense_variant | 4/11 | 1 | NM_000465.4 | P2 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome AF: 0.00000821 AC: 12AN: 1461814Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4AN XY: 727198
GnomAD4 exome
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12
AN:
1461814
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Cov.:
31
AF XY:
AC XY:
4
AN XY:
727198
Gnomad4 AFR exome
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GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Apr 13, 2022 | This missense variant replaces proline with leucine at codon 392 of the BARD1 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with hereditary cancer in the literature. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. - |
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Oct 25, 2022 | The p.P392L variant (also known as c.1175C>T), located in coding exon 4 of the BARD1 gene, results from a C to T substitution at nucleotide position 1175. The proline at codon 392 is replaced by leucine, an amino acid with similar properties. This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
Familial cancer of breast Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Sep 26, 2021 | 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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. ClinVar contains an entry for this variant (Variation ID: 530157). This variant has not been reported in the literature in individuals affected with BARD1-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces proline with leucine at codon 392 of the BARD1 protein (p.Pro392Leu). The proline residue is highly conserved and there is a moderate physicochemical difference between proline and leucine. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Uncertain
T
BayesDel_noAF
Benign
CADD
Benign
DANN
Uncertain
DEOGEN2
Benign
T;.
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Benign
T;T
M_CAP
Uncertain
D
MetaRNN
Uncertain
T;T
MetaSVM
Uncertain
D
MutationAssessor
Uncertain
M;.
MutationTaster
Benign
D;D
PrimateAI
Benign
T
PROVEAN
Pathogenic
D;.
REVEL
Benign
Sift
Uncertain
D;.
Sift4G
Uncertain
D;D
Polyphen
D;.
Vest4
MutPred
Loss of glycosylation at P392 (P = 0.0364);.;
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at