rs587782282
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_005732.4(RAD50):c.2299G>A(p.Asp767Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000762 in 1,613,652 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. 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. D767G) has been classified 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 -2 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RAD50 | ENST00000378823.8 | c.2299G>A | p.Asp767Asn | missense_variant | Exon 14 of 25 | 1 | NM_005732.4 | ENSP00000368100.4 | ||
ENSG00000283782 | ENST00000638452.2 | c.2002G>A | p.Asp668Asn | missense_variant | Exon 16 of 27 | 5 | ENSP00000492349.2 |
Frequencies
GnomAD3 genomes AF: 0.0000329 AC: 5AN: 152150Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000319 AC: 8AN: 251044 AF XY: 0.0000147 show subpopulations
GnomAD4 exome AF: 0.0000807 AC: 118AN: 1461502Hom.: 1 Cov.: 31 AF XY: 0.0000770 AC XY: 56AN XY: 727076 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000329 AC: 5AN: 152150Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74316 show subpopulations
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:2
The p.D767N variant (also known as c.2299G>A), located in coding exon 14 of the RAD50 gene, results from a G to A substitution at nucleotide position 2299. The aspartic acid at codon 767 is replaced by asparagine, an amino acid with highly similar properties. In one study, this alteration was identified in 3/1358 non-cancer control individuals and in 0/57 cases, in a study looking at cancer predisposition mutations in patients with cutaneous melanoma and a history of at least two additional non-cutaneous melanoma primary cancers. (Pritchard AL et al. PLoS ONE, 2018 Apr;13:e0194098). In another study, this alteration was detected in the germline of 1/50 adolescent or young adult patients with cutaneous melanoma (Wilmott JS et al. Int. J. Cancer, 2019 03;144:1049-1060). This amino acid position is not well 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. -
This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 767 of the RAD50 protein (p.Asp767Asn). This variant is present in population databases (rs587782282, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with RAD50-related conditions. ClinVar contains an entry for this variant (Variation ID: 142173). 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. -
not provided Uncertain:1
The RAD50 c.2299G>A (p.Asp767Asn) variant has been reported in the published literature in individuals with melanoma (PMID: 30178487 (2019), 29641532 (2018)). In a large-scale breast cancer association study, the variant was observed in individuals with breast cancer as well as in apparently healthy control individuals (PMID: 33471991 (2021), see also LOVD (http://databases.lovd.nl/shared/genes/RAD50)). The frequency of this variant in the general population, 0.000032 (8/251044 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. -
Nijmegen breakage syndrome-like disorder Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at