5-132603489-G-C
Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PP3_ModerateBP6
The NM_005732.4(RAD50):āc.2397G>Cā(p.Gln799His) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000415 in 1,613,346 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_005732.4 missense, splice_region
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 1 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RAD50 | ENST00000378823.8 | c.2397G>C | p.Gln799His | missense_variant, splice_region_variant | Exon 14 of 25 | 1 | NM_005732.4 | ENSP00000368100.4 | ||
ENSG00000283782 | ENST00000640655.2 | c.2100G>C | p.Gln700His | missense_variant, splice_region_variant | Exon 15 of 26 | 5 | ENSP00000491596.2 |
Frequencies
GnomAD3 genomes AF: 0.000335 AC: 51AN: 152172Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.000255 AC: 64AN: 250734Hom.: 0 AF XY: 0.000266 AC XY: 36AN XY: 135534
GnomAD4 exome AF: 0.000424 AC: 619AN: 1461174Hom.: 0 Cov.: 31 AF XY: 0.000410 AC XY: 298AN XY: 726960
GnomAD4 genome AF: 0.000335 AC: 51AN: 152172Hom.: 0 Cov.: 32 AF XY: 0.000323 AC XY: 24AN XY: 74334
ClinVar
Submissions by phenotype
not provided Uncertain:4
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The RAD50 c.2397G>C (p.Gln799His) variant has been reported in the published literature in individuals with breast cancer (PMIDs: 23555315 (2013), 25452441 (2015), and 26787654 (2016)). In a large scale breast cancer association study, this variant has been observed in 76 breast cancer cases and 50 reportedly healthy individuals (PMID: 33471991 (2021)), see also LOVD (http://databases.lovd.nl/shared)). The frequency of this variant in the general population, 0.001 (11/10604 chromosomes in European (Finnish) subpopulation (Genome Aggregation Database, http://gnomad.broadinstitute.org)), is higher than would generally be expected for pathogenic variants in this gene. Analysis of this variant using bioinformatics tools for the prediction of the effect of amino acid changes on protein structure and function yielded conflicting predictions that this variant is benign or damaging. Based on the available information, we are unable to determine the clinical significance of this variant. -
In silico analysis supports that this missense variant does not alter protein structure/function; Variants in candidate genes are classified as variants of uncertain significance in accordance with ACMG guidelines (Richards 2015); This variant is associated with the following publications: (PMID: 25452441, 24894818, 26822949) -
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Nijmegen breakage syndrome-like disorder Uncertain:3
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Hereditary cancer-predisposing syndrome Benign:2
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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. -
RAD50-related disorder Uncertain:1
The RAD50 c.2397G>C variant is predicted to result in the amino acid substitution p.Gln799His. This variant has been reported in individuals with breast cancer (Damiola et al. 2014. PubMed ID: 24894818; Supplementary Table 6, Couch et al. 2015. PubMed ID: 25452441; Mandelker et al. 2017. PubMed ID: 28873162). This variant is reported in 0.080% of alleles in individuals of European (Finnish) descent in gnomAD and has conflicting interpretations of likely benign and uncertain significance in ClinVar (https://www.ncbi.nlm.nih.gov/clinvar/variation/128004/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
not specified Benign:1
Variant summary: RAD50 c.2397G>C (p.Gln799His) results in a non-conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. Consensus agreement among computation tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 0.00026 in 250734 control chromosomes, predominantly at a frequency of 0.00042 within the Non-Finnish European subpopulation in the gnomAD database. The observed variant frequency within Non-Finnish European control individuals in the gnomAD database is approximately 6.7 fold of the estimated maximal expected allele frequency for a pathogenic variant in RAD50 causing Hereditary Breast And Ovarian Cancer Syndrome phenotype (6.3e-05). c.2397G>C has been reported in the literature in individuals affected with Hereditary Breast and Ovarian Cancer Syndrome Cancer without strong evidence for causality (examples: Damiola_2014, Couch_2015, and Lhota_2016). These report(s) 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. The following publications have been ascertained in the context of this evaluation (PMID: 25452441, 24894818, 26822949, 36641486). ClinVar contains an entry for this variant (Variation ID: 128004). Based on the evidence outlined above, the variant was classified as likely benign. -
Nijmegen breakage syndrome-like disorder;C3469522:Breast cancer, susceptibility to Other:1
Variant interpreted as Uncertain significance and reported on 09-07-2016 by Invitae. GenomeConnect-Invitae Patient Insights Network assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. Registry team members make no attempt to reinterpret the clinical significance of the variant. Phenotypic details are available under supporting information. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at