17-58696742-G-T
Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4
The NM_058216.3(RAD51C):c.454G>T(p.Ala152Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,872 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. 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. A152T) has been classified as Likely benign.
Frequency
Consequence
NM_058216.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 1 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251486Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135916
GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461872Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2AN XY: 727238
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:2
The p.A152S variant (also known as c.454G>T), located in coding exon 3 of the RAD51C gene, results from a G to T substitution at nucleotide position 454. The alanine at codon 152 is replaced by serine, an amino acid with similar properties. This variant was detected in 1/237 individuals considered high risk for hereditary breast and/or ovarian cancer that previously tested negative for pathogenic BRCA1/2 mutations (Schubert S et al. Int J Cancer, 2019 06;144:2683-2694). This amino acid position is not well 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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Fanconi anemia complementation group O Uncertain:1
This sequence change replaces alanine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 152 of the RAD51C protein (p.Ala152Ser). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with breast cancer (PMID: 30426508). ClinVar contains an entry for this variant (Variation ID: 490127). 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at