rs750551012
Variant summary
Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4
The NM_058216.3(RAD51C):āc.769C>Gā(p.Leu257Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000118 in 1,612,076 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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. L257I) has been classified as Uncertain significance.
Frequency
Consequence
NM_058216.3 missense
Scores
Clinical Significance
Conservation
Publications
- breast-ovarian cancer, familial, susceptibility to, 3Inheritance: AD Classification: STRONG, LIMITED Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics
- Fanconi anemia complementation group OInheritance: AR Classification: STRONG, MODERATE, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen
- hereditary breast ovarian cancer syndromeInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- Fanconi anemiaInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- hereditary breast carcinomaInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Likely_benign. The variant received -1 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000658 AC: 10AN: 152056Hom.: 0 Cov.: 30 show subpopulations
GnomAD2 exomes AF: 0.0000358 AC: 9AN: 251444 AF XY: 0.0000368 show subpopulations
GnomAD4 exome AF: 0.00000616 AC: 9AN: 1460020Hom.: 0 Cov.: 30 AF XY: 0.00000688 AC XY: 5AN XY: 726484 show subpopulations
GnomAD4 genome AF: 0.0000658 AC: 10AN: 152056Hom.: 0 Cov.: 30 AF XY: 0.0000942 AC XY: 7AN XY: 74274 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:2
This missense variant replaces leucine with valine at codon 257 of the RAD51C protein. Computational prediction tools and conservation analyses are inconclusive regarding the impact of this variant on the protein function. Computational splicing tools suggest that this variant may not impact RNA splicing. To our knowledge, functional assays have not been performed for this variant nor has this variant been reported in individuals affected with hereditary cancer in the literature. This variant has been identified in 9/251444 chromosomes in the general population by the Genome Aggregation Database (gnomAD). 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. -
The p.L257V variant (also known as c.769C>G), located in coding exon 5 of the RAD51C gene, results from a C to G substitution at nucleotide position 769. The leucine at codon 257 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. -
not provided Uncertain:1
In silico analysis supports that this missense variant does not alter protein structure/function; Published functional studies demonstrate in vivo binding partner interactions comparable to wild type (Prakash et al., 2022); This variant is associated with the following publications: (PMID: 14704354, 36099300) -
Fanconi anemia complementation group O Uncertain:1
This sequence change replaces leucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 257 of the RAD51C protein (p.Leu257Val). This variant is present in population databases (rs750551012, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with RAD51C-related conditions. ClinVar contains an entry for this variant (Variation ID: 232264). 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 RAD51C 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. -
Breast-ovarian cancer, familial, susceptibility to, 3 Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at