rs781213977
Variant summary
Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBP6
The NM_005732.4(RAD50):c.2092A>G(p.Ile698Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000372 in 1,613,906 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I698M) 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 -3 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| RAD50 | NM_005732.4 | c.2092A>G | p.Ile698Val | missense_variant | Exon 13 of 25 | ENST00000378823.8 | NP_005723.2 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152252Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00000398 AC: 1AN: 251300 AF XY: 0.00 show subpopulations
GnomAD4 exome AF: 0.00000342 AC: 5AN: 1461654Hom.: 0 Cov.: 30 AF XY: 0.00000275 AC XY: 2AN XY: 727162 show subpopulations
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152252Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74388 show subpopulations
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
The p.I698V variant (also known as c.2092A>G), located in coding exon 13 of the RAD50 gene, results from an A to G substitution at nucleotide position 2092. The isoleucine at codon 698 is replaced by valine, an amino acid with highly similar properties. 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. -
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not specified Uncertain:1
Variant summary: RAD50 c.2092A>G (p.Ile698Val) results in a conservative amino acid change located in the zinc hook domain (IPR013134) of the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 4e-06 in 251300 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.2092A>G has been reported in the literature in individuals affected with or at high risk for Hereditary Breast and Ovarian Cancer Syndrome (e.g. Shalabi_2021, Nunziato_2022), however these reports did not provide supporting evidence for causality. In a recent large study evaluating breast cancer cases and controls in the Breast Cancer Association Consortium (BCAC), the variant was reported in 2/60466 cases, and was not found in 53461 controls (Dorling_2021, reported through LOVD). Therefore, these reports do not provide unequivocal conclusions about association of the variant with Hereditary Breast and Ovarian Cancer Syndrome. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Two clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014. One laboratory classified the variant as likely benign, and one laboratory classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as uncertain significance. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at