rs142058115

Positions:

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2PM5PP3_Strong

The NM_058216.3(RAD51C):c.373G>A(p.Gly125Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,450 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. G125V) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

RAD51C
NM_058216.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 8.84

Variant links:

Genes affected

RAD51C (HGNC:9820): (RAD51 paralog C) This gene is a member of the RAD51 family. RAD51 family members are highly similar to bacterial RecA and Saccharomyces cerevisiae Rad51 and are known to be involved in the homologous recombination and repair of DNA. This protein can interact with other RAD51 paralogs and is reported to be important for Holliday junction resolution. Mutations in this gene are associated with Fanconi anemia-like syndrome. This gene is one of four localized to a region of chromosome 17q23 where amplification occurs frequently in breast tumors. Overexpression of the four genes during amplification has been observed and suggests a possible role in tumor progression. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]

RAD51C links:

RAD51C (HGNC:):

RAD51C links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr17-58695159-G-T is described in Lovd as [Pathogenic].

PP3

MetaRNN computational evidence supports a deleterious effect, 0.961

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RAD51C	NM_058216.3 linkuse as main transcript	c.373G>A	p.Gly125Ser	missense_variant	2/9	ENST00000337432.9	NP_478123.1	O43502-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RAD51C	ENST00000337432.9 linkuse as main transcript	c.373G>A	p.Gly125Ser	missense_variant	2/9	1	NM_058216.3	ENSP00000336701.4		O43502-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000400

AC:

AN:

250004

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135148

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000886

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460450

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726324

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Oct 30, 2023	This missense variant replaces a conserved glycine with serine at codon 125 in the Walker A motif of the ATPase domain in the RAD51C protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function. A functional study has reported that this variant disrupts RAD51C binding to two RAD51 paralogs but not its ability to bind RAD51D and to rescue viability and homolog-directed repair (HDR) activities in HDR-deficient cells (PMID: 36099300). This variant has not been reported in individuals affected with RAD51C-related disorders in the literature. A different missense variant at this codon p.Gly125Ser has been reported in an individual affected with breast cancer and it has been shown to affected RAD51C function in DNA and RAD51 paralog binding and ATP hydrolysis assays in vitro and in complementation assays in RAD51-deficient cells (PMID: 36099300). This other RAD51 p.Gly125Ser missense variant also has been reported as likely disease-causing in ClinVar (variation ID: 6824). This variant has been identified in 1/250004 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. -
Uncertain significance, criteria provided, single submitter	clinical testing	Ambry Genetics	Nov 15, 2024	The p.G125S variant (also known as c.373G>A), located in coding exon 2 of the RAD51C gene, results from a G to A substitution at nucleotide position 373. The glycine at codon 125 is replaced by serine, an amino acid with similar properties. In a homology-directed DNA repair (HDR) assay, this variant showed a functionally indeterminant read-out in one study (Prakash R et al. Proc Natl Acad Sci U S A, 2022 Sep;119:e2202727119) and functionally normal in another study Hu C et al. Cancer Res, 2023 Aug;83:2557-2571). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Jul 31, 2020

Not observed at a significant frequency in large population cohorts (Lek 2016); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Fanconi anemia complementation group O

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 11, 2024

This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 125 of the RAD51C protein (p.Gly125Ser). This variant is present in population databases (rs142058115, gnomAD 0.0009%). 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: 409836). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt RAD51C protein function with a positive 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

Uncertain significance, criteria provided, single submitter

clinical testing

Baylor Genetics

Oct 24, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.76

BayesDel_addAF

Pathogenic

0.48

BayesDel_noAF

Pathogenic

0.45

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.15

T;T;T;.;T;T

Eigen

Pathogenic

0.74

Eigen_PC

Pathogenic

0.74

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.98

D;D;D;D;D;D

M_CAP

Pathogenic

0.34

MetaRNN

Pathogenic

0.96

D;D;D;D;D;D

MetaSVM

Uncertain

0.57

MutationAssessor

Pathogenic

4.1

.;.;H;H;.;.

PrimateAI

Uncertain

0.65

PROVEAN

Pathogenic

-6.0

.;.;D;D;D;.

REVEL

Pathogenic

0.96

Sift

Pathogenic

0.0

.;.;D;D;D;.

Sift4G

Pathogenic

0.0

D;D;D;D;D;D

Polyphen

1.0

.;.;D;.;.;.

Vest4

0.98, 0.98, 0.97

MVP

0.97

MPC

0.84

ClinPred

1.0

GERP RS

5.4

Varity_R

0.97

gMVP

0.95

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over