rs374357106
Variant summary
Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2
The NM_002878.4(RAD51D):c.185C>T(p.Ser62Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000632 in 1,614,054 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. S62P) has been classified as Uncertain significance.
Frequency
Consequence
NM_002878.4 missense
Scores
Clinical Significance
Conservation
Publications
- breast-ovarian cancer, familial, susceptibility to, 4Inheritance: AD Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
- hereditary breast ovarian cancer syndromeInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- hereditary breast carcinomaInheritance: AD Classification: LIMITED Submitted by: ClinGen
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ACMG classification
Our verdict: Likely_benign. The variant received -4 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| RAD51D | ENST00000345365.11 | c.185C>T | p.Ser62Leu | missense_variant | Exon 3 of 10 | 1 | NM_002878.4 | ENSP00000338790.6 | ||
| ENSG00000267618 | ENST00000593039.5 | c.3+2712C>T | intron_variant | Intron 1 of 6 | 2 | ENSP00000466834.1 |
Frequencies
GnomAD3 genomes AF: 0.0000460 AC: 7AN: 152182Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000199 AC: 5AN: 251382 AF XY: 0.0000294 show subpopulations
GnomAD4 exome AF: 0.0000650 AC: 95AN: 1461872Hom.: 0 Cov.: 32 AF XY: 0.0000564 AC XY: 41AN XY: 727240 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000460 AC: 7AN: 152182Hom.: 0 Cov.: 32 AF XY: 0.0000404 AC XY: 3AN XY: 74334 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:3
The p.S62L variant (also known as c.185C>T), located in coding exon 3 of the RAD51D gene, results from a C to T substitution at nucleotide position 185. The serine at codon 62 is replaced by leucine, an amino acid with dissimilar properties. In one study, this variant was detected in 1/911 patients from families with breast and/or ovarian cancer and was not seen in 1060 population controls from the United Kingdom (Loveday C et al. Nat. Genet., 2011 Aug;43:879-882). In another study, this variant was not detected in 3429 patients with invasive epithelial ovarian cancer, but was reported in 1/2772 controls (Song H et al. J. Clin. Oncol. 2015 Sep;33:2901-7). This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -
This missense variant replaces serine with leucine at codon 62 of the RAD51D protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). In a mini-gene RNA splicing study, this variant has been shown to result in a significant proportion of full-length transcripts (PMID: 34200360). This variant has been reported in an individual affected with breast and/or ovarian cancer (PMID: 21822267) and in an unaffected individual in an ovarian cancer risk case-control study (PMID: 26261251). This variant has been identified in 6/282720 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
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not provided Uncertain:2
The RAD51D c.185C>T (p.Ser62Leu) variant has been reported in the published literature in individuals/families affected with breast and/or ovarian cancer (PMIDs: 21822267 (2011), 34923718 (2022)), as well as in reportedly healthy individuals (PMID: 26261251 (2015)). The frequency of this variant in the general population, 0.000046 (6/129096 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 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 has a deleterious effect on protein structure/function; Minigene assay demonstrates slightly increased amount of alternatively spliced transcripts, but the clinical significance is unclear (Bueno-Martinez et al., 2021); This variant is associated with the following publications: (PMID: 26261251, 27720647, 14704354, 19327148, 34923718, 21822267, 34200360) -
Breast-ovarian cancer, familial, susceptibility to, 4 Uncertain:2
This sequence change replaces serine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 62 of the RAD51D protein (p.Ser62Leu). This variant is present in population databases (rs374357106, gnomAD 0.005%). This missense change has been observed in individual(s) with breast and/or ovarian cancer (PMID: 21822267). ClinVar contains an entry for this variant (Variation ID: 185036). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt RAD51D 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. -
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not specified Uncertain:1
Variant summary: RAD51D c.185C>T (p.Ser62Leu) 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. The variant allele was found at a frequency of 2.3e-05 in 261166 control chromosomes (gnomAD and publication data). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.185C>T has been reported in the literature in individuals affected with Hereditary Breast And Ovarian Cancer Syndrome (Loveday_2011, Boni_2021). 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. Six ClinVar submitters (evaluation after 2014) cite the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as uncertain significance. -
Breast and/or ovarian cancer Uncertain:1
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RAD51D-related disorder Uncertain:1
The RAD51D c.185C>T variant is predicted to result in the amino acid substitution p.Ser62Leu. This variant has been reported in individuals with breast and/or ovarian cancer (Table S4, Loveday et al. 2011. PubMed ID: 21822267; Table A4, Song et al. 2015. PubMed ID: 26261251; Bueno-Martínez et al. 2021. PubMed ID: 34200360). This variant is reported in 0.0046% of alleles in individuals of European (Non-Finnish) descent in gnomAD, and it has been interpreted as a variant of uncertain significance in the ClinVar database (https://www.ncbi.nlm.nih.gov/clinvar/variation/185036/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Hereditary cancer Uncertain:1
The available evidence is insufficient to conclusively determine the role of this variant. Therefore, it is classified as a Variant of Uncertain Significance. -
Hereditary breast ovarian cancer syndrome Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at