chr13-32394890-G-T
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_000059.4(BRCA2):c.9458G>T(p.Gly3153Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,613,936 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. G3153A) has been classified as Likely benign.
Frequency
Consequence
NM_000059.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
BRCA2 | NM_000059.4 | c.9458G>T | p.Gly3153Val | missense_variant | 25/27 | ENST00000380152.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
BRCA2 | ENST00000380152.8 | c.9458G>T | p.Gly3153Val | missense_variant | 25/27 | 5 | NM_000059.4 | A2 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152146Hom.: 0 Cov.: 33
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461790Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1AN XY: 727190
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152146Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74330
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | May 01, 2019 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jan 05, 2023 | The p.G3153V variant (also known as c.9458G>T), located in coding exon 24 of the BRCA2 gene, results from a G to T substitution at nucleotide position 9458. The glycine at codon 3153 is replaced by valine, an amino acid with dissimilar properties. This amino acid position is poorly 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. - |
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital | Aug 15, 2023 | - - |
Breast-ovarian cancer, familial, susceptibility to, 2 Uncertain:1
Uncertain significance, no assertion criteria provided | clinical testing | Sharing Clinical Reports Project (SCRP) | Nov 09, 2006 | - - |
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Institute for Clinical Genetics, University Hospital TU Dresden, University Hospital TU Dresden | Nov 03, 2021 | - - |
Familial cancer of breast Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Baylor Genetics | Sep 08, 2023 | - - |
Hereditary breast ovarian cancer syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Feb 25, 2022 | This sequence change replaces glycine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 3153 of the BRCA2 protein (p.Gly3153Val). This variant is not present in population databases (gnomAD no frequency). 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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt BRCA2 protein function. ClinVar contains an entry for this variant (Variation ID: 96882). This variant has not been reported in the literature in individuals affected with BRCA2-related conditions. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at