rs367925756
Variant summary
Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4
The NM_005732.4(RAD50):c.2047G>A(p.Val683Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000613 in 1,613,948 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 (★★).
Frequency
Consequence
NM_005732.4 missense
Scores
Clinical Significance
Conservation
Publications
- Nijmegen breakage syndrome-like disorderInheritance: AR Classification: STRONG, LIMITED Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
- familial ovarian cancerInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
- hereditary breast carcinomaInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Likely_benign. The variant received -1 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| RAD50 | ENST00000378823.8 | c.2047G>A | p.Val683Ile | missense_variant | Exon 13 of 25 | 1 | NM_005732.4 | ENSP00000368100.4 | ||
| ENSG00000283782 | ENST00000638452.2 | c.1750G>A | p.Val584Ile | missense_variant | Exon 15 of 27 | 5 | ENSP00000492349.2 |
Frequencies
GnomAD3 genomes AF: 0.0000329 AC: 5AN: 152142Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000398 AC: 10AN: 251334 AF XY: 0.0000515 show subpopulations
GnomAD4 exome AF: 0.0000643 AC: 94AN: 1461806Hom.: 0 Cov.: 30 AF XY: 0.0000743 AC XY: 54AN XY: 727206 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000329 AC: 5AN: 152142Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74316 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Nijmegen breakage syndrome-like disorder Uncertain:3
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Hereditary cancer-predisposing syndrome Uncertain:2
This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 683 of the RAD50 protein (p.Val683Ile). This variant is present in population databases (rs367925756, gnomAD 0.01%). This missense change has been observed in individual(s) with breast cancer (PMID: 24894818). ClinVar contains an entry for this variant (Variation ID: 185548). 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 RAD50 protein function with a negative predictive value of 80%. 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. -
The p.V683I variant (also known as c.2047G>A), located in coding exon 13 of the RAD50 gene, results from a G to A substitution at nucleotide position 2047. The valine at codon 683 is replaced by isoleucine, an amino acid with highly similar properties. This variant was reported in 1/1313 early-onset breast cancer cases and 0/1123 population controls (Damiola F et al. Breast Cancer Res. 2014 Jun;16:R58). It was also reported in a study of 1297 cases of early-onset breast cancer and 1121 controls (Young EL et al. J. Med. Genet. 2016 Jun;53:366-76). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Lung sarcomatoid carcinoma Uncertain:1
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not provided Uncertain:1
The RAD50 c.2047G>A (p.Val683Ile) variant has been reported in the published literature in an early onset breast cancer (PMID: 24894818 (2014)), as well as in breast cancer cases and reportedly healthy individuals in a large scale breast cancer association study (PMID: 33471991 (2021), see also LOVD (http://databases.lovd.nl/shared/genes/RAD50)). The frequency of this variant in the general population, 0.00035 (4/11496 chromosomes (Genome Aggregation Database, http://gnomad.broadinstitute.org)), is uninformative in the assessment of its pathogenicity. Analysis of this variant using bioinformatics tools for the prediction of the effect of amino acid changes on protein structure and function yielded predictions that this variant is benign. Based on the available information, we are unable to determine the clinical significance of this variant. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at