NM_002878.4:c.355T>C
Variant summary
Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2
The NM_002878.4(RAD51D):c.355T>C(p.Cys119Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000136 in 1,613,972 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_002878.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -7 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RAD51D | ENST00000345365.11 | c.355T>C | p.Cys119Arg | missense_variant | Exon 5 of 10 | 1 | NM_002878.4 | ENSP00000338790.6 | ||
ENSG00000267618 | ENST00000593039.5 | c.4-632T>C | intron_variant | Intron 1 of 6 | 2 | ENSP00000466834.1 |
Frequencies
GnomAD3 genomes AF: 0.0000657 AC: 10AN: 152146Hom.: 0 Cov.: 31
GnomAD3 exomes AF: 0.0000517 AC: 13AN: 251406Hom.: 0 AF XY: 0.0000589 AC XY: 8AN XY: 135870
GnomAD4 exome AF: 0.000143 AC: 209AN: 1461826Hom.: 1 Cov.: 32 AF XY: 0.000135 AC XY: 98AN XY: 727212
GnomAD4 genome AF: 0.0000657 AC: 10AN: 152146Hom.: 0 Cov.: 31 AF XY: 0.0000404 AC XY: 3AN XY: 74336
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:2Benign:1
The p.C119R variant (also known as c.355T>C), located in coding exon 5 of the RAD51D gene, results from a T to C substitution at nucleotide position 355. The cysteine at codon 119 is replaced by arginine, an amino acid with highly dissimilar properties. This alteration has been reported in multiple breast and/or ovarian cancer cohorts (Osher DJ et al. Br. J. Cancer, 2012 Apr;106:1460-3; Gutiérrez-Enríquez S et al. Int J Cancer, 2014 May;134:2088-97; Tung N et al. Cancer, 2015 Jan;121:25-33; Song H et al. J Clin Oncol, 2015 Sep;33:2901-7; Penkert J et al. Breast Cancer Res, 2018 08;20:87). Additionally, this variant was reported in 8/60,466 breast cancer cases and in 9/53,461 controls (Dorling et al. N Engl J Med. 2021 02;384:428-439). This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
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Breast-ovarian cancer, familial, susceptibility to, 4 Uncertain:2Benign:1
This sequence change replaces cysteine, which is neutral and slightly polar, with arginine, which is basic and polar, at codon 119 of the RAD51D protein (p.Cys119Arg). This variant is present in population databases (rs201313861, gnomAD 0.009%). This missense change has been observed in individual(s) with breast cancer, ovarian cancer, and/or pancreatic ductal adenocarcinoma (PMID: 22415235, 24130102, 25186627, 26261251, 28767289, 30086788). This variant is also known as c.415A>G (p.C139R). ClinVar contains an entry for this variant (Variation ID: 182856). 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. -
This variant is considered likely benign. This variant is strongly associated with less severe personal and family histories of cancer, typical for individuals without pathogenic variants in this gene [PMID: 25085752]. -
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not specified Uncertain:2
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Variant summary: RAD51D c.355T>C (p.Cys119Arg) results in a non-conservative amino acid change located in the AAA+ ATPase domain of the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 5.8e-05 in 256850 control chromosomes. This frequency is not significantly higher than expected for a pathogenic variant in RAD51D causing Hereditary Breast And Ovarian Cancer Syndrome (5.8e-05 vs 0.00013), allowing no conclusion about variant significance. c.355T>C has been reported in the literature in individuals affected with Hereditary Breast And Ovarian Cancer Syndrome in the absence of BRCA mutations, as well as pancreatic cancer and prostate cancer (Osher_2012, Gutierrez-Enriques_2014, Song_2015, Tung_2015, Shindo_2017, Lu_2015, Penkert_2018). 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 clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation; five classified as VUS while one classified as likely benign. Based on the evidence outlined above, the variant was classified as uncertain significance. -
not provided Uncertain:2
In silico analysis supports that this missense variant does not alter protein structure/function; Observed in individuals with a personal or family history including breast, ovarian, pancreatic, and other cancers (Osher et al., 2012; Song et al., 2015; Shindo et al., 2017; Penkert et al., 2018); This variant is associated with the following publications: (PMID: 28767289, 22415235, 24130102, 26261251, 28492532, 30086788, 14704354, 19327148, 21111057, 34923718, 27535533) -
The RAD51D c.355T>C (p.Cys119Arg) variant has been reported in the published literature in individuals affected with prostate cancer (PMID: 26689913 (2015)), breast and/or ovarian cancer as well as in reportedly healthy individuals (PMIDs: 33471991 (2021), 30086788 (2018), 26261251 (2015), 25186627 (2015), 24130102 (2014), 22415235 (2012), see also LOVD (http://databases.lovd.nl/shared/genes/RAD51D)). The frequency of this variant in the general population, 0.000085 (11/129168 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. -
Breast and/or ovarian cancer Uncertain:1
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Malignant tumor of breast Uncertain:1
The RAD51D p.Cys119Arg variant was identified in 4 of 8892 proband chromosomes (frequency: 0.0004) from individuals or families with breast and ovarian cancer and was present in 2 of 5544 control chromosomes (frequency: 0.0004) from healthy individuals (Gutierrez-Enriquez 2013, Osher 2012, Song 2015). The variant was also identified in dbSNP (ID: rs201313861) as “With Uncertain significance allele”, and in ClinVar (classified as uncertain significance by GeneDx, Ambry genetics, Invitae, LCOA clinical laboratory). The variant was not identified in the Cosmic database. The variant was identified in control databases in 15 of 277134 chromosomes at a frequency of 0.0001 (Genome Aggregation Database Feb 27, 2017). It was observed in the following populations: African in 1 of 24020 chromosomes (freq: 0.00004), Latino in 3 of 34420 chromosomes (freq: 0.0001), European in 11 of 126692 chromosomes (freq: 0.0001); it was not observed in the “Other”, Ashkenazi Jewish, East Asian, Finnish, and South Asian populations. The p.Cys119 residue is conserved in mammals and computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) provide inconsistent predictions regarding the impact to the protein; this information is not very predictive of pathogenicity. The variant occurs outside of the splicing consensus sequence and 1 of 5 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) predict a greater than 10% difference in splicing; this is not very predictive of pathogenicity. In summary, based on the above information, the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of uncertain significance. -
Hereditary breast ovarian cancer syndrome Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at