chr13-32379360-G-C
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4BP6
The NM_000059.4(BRCA2):c.8798G>C(p.Arg2933Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000031 in 1,613,694 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2933K) has been classified as Uncertain significance.
Frequency
Consequence
NM_000059.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 0 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
BRCA2 | NM_000059.4 | c.8798G>C | p.Arg2933Thr | missense_variant | 22/27 | ENST00000380152.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
BRCA2 | ENST00000380152.8 | c.8798G>C | p.Arg2933Thr | missense_variant | 22/27 | 5 | NM_000059.4 | A2 |
Frequencies
GnomAD3 genomes ? AF: 0.0000131 AC: 2AN: 152132Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000797 AC: 2AN: 250796Hom.: 0 AF XY: 0.0000148 AC XY: 2AN XY: 135544
GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461562Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3AN XY: 727076
GnomAD4 genome ? AF: 0.0000131 AC: 2AN: 152132Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74324
ClinVar
Submissions by phenotype
not provided Uncertain:3
Uncertain significance, no assertion criteria provided | clinical testing | Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen | - | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | Quest Diagnostics Nichols Institute San Juan Capistrano | Mar 19, 2021 | - - |
Uncertain significance, no assertion criteria provided | clinical testing | Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+ | - | - - |
Familial cancer of breast Uncertain:1Benign:1
Likely benign, criteria provided, single submitter | clinical testing | MGZ Medical Genetics Center | Feb 09, 2024 | ACMG codes applied following ENIGMA VCEP rules: BS3, BP4 - |
Uncertain significance, criteria provided, single submitter | clinical testing | Baylor Genetics | Sep 21, 2023 | - - |
Hereditary breast ovarian cancer syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Dec 17, 2023 | This sequence change replaces arginine, which is basic and polar, with threonine, which is neutral and polar, at codon 2933 of the BRCA2 protein (p.Arg2933Thr). This variant is present in population databases (rs553440338, gnomAD 0.002%). This variant has not been reported in the literature in individuals affected with BRCA2-related conditions. ClinVar contains an entry for this variant (Variation ID: 234098). 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 with a negative predictive value of 95%. 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. - |
Hereditary cancer-predisposing syndrome Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Jan 11, 2022 | This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at