rs779834376

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM5PP3_Strong

The NM_058216.3(RAD51C):​c.935G>A​(p.Arg312Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000223 in 1,613,030 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R312G) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

RAD51C
NM_058216.3 missense

Scores

8
8
3

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:9

Conservation

PhyloP100: 5.47

Publications

6 publications found
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 Gene-Disease associations (from GenCC):
  • breast-ovarian cancer, familial, susceptibility to, 3
    Inheritance: AD Classification: STRONG, LIMITED Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • Fanconi anemia complementation group O
    Inheritance: AR Classification: STRONG, MODERATE, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen
  • hereditary breast ovarian cancer syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Fanconi anemia
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • hereditary breast carcinoma
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM5
Other missense variant is known to change same aminoacid residue: Variant chr17-58724069-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 665797.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.969

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RAD51CNM_058216.3 linkc.935G>A p.Arg312Gln missense_variant Exon 7 of 9 ENST00000337432.9 NP_478123.1 O43502-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RAD51CENST00000337432.9 linkc.935G>A p.Arg312Gln missense_variant Exon 7 of 9 1 NM_058216.3 ENSP00000336701.4 O43502-1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151992
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000239
AC:
6
AN:
251358
AF XY:
0.0000368
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000240
AC:
35
AN:
1461038
Hom.:
0
Cov.:
30
AF XY:
0.0000261
AC XY:
19
AN XY:
726870
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33462
American (AMR)
AF:
0.0000224
AC:
1
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26126
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39662
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86240
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53410
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5762
European-Non Finnish (NFE)
AF:
0.0000252
AC:
28
AN:
1111286
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60366
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.454
Heterozygous variant carriers
0
2
4
5
7
9
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151992
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74220
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41376
American (AMR)
AF:
0.00
AC:
0
AN:
15210
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10594
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68010
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000675
Hom.:
0
Bravo
AF:
0.00000378
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.00
AC:
0
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:9
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Fanconi anemia complementation group O Pathogenic:1Uncertain:2
Sep 18, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 312 of the RAD51C protein (p.Arg312Gln). This variant is present in population databases (rs779834376, gnomAD 0.006%). This missense change has been observed in individual(s) with Fanconi anemia (PMID: 29278735). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 229887). 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%. Studies have shown that this missense change is associated with inconclusive levels of altered splicing (internal data). In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -

Apr 01, 2024
Daryl Scott Lab, Baylor College of Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

PS4, PM3 -

-
Baylor Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Hereditary cancer-predisposing syndrome Uncertain:3
Mar 16, 2022
Sema4, Sema4
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:curation

- -

Aug 29, 2022
Color Diagnostics, LLC DBA Color Health
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This missense variant replaces arginine with glutamine at codon 312 of the RAD51C protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in an individual having clinical features of Fanconi anemia in compound heterozygosity with a splice site variant c.571+5G>A (PMID: 2927873). In a breast cancer case-control study, this variant has been reported in 1/60466 cases and 1/53461 unaffected controls (OR=0.884; 95%CI 0.055 to 14.136; p-value=1; Leiden Open Variation Database DB-ID RAD51C_000200) (PMID: 33471991). This variant has been identified in 6/251358 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. -

May 15, 2025
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.R312Q variant (also known as c.935G>A), located in coding exon 7 of the RAD51C gene, results from a G to A substitution at nucleotide position 935. The arginine at codon 312 is replaced by glutamine, an amino acid with highly similar properties. This variant has been reported in conjunction with another variant in RAD51C in an individual diagnosed with clinical features of Fanconi anemia (Jacquinet A et al. Eur J Med Genet, 2018 May;61:257-261). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -

not provided Uncertain:1
Jun 28, 2021
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 27535533, 14704354, 29278735) -

Familial ovarian cancer Uncertain:1
Dec 31, 2024
Molecular Pathology, Peter Maccallum Cancer Centre
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Hereditary breast ovarian cancer syndrome Uncertain:1
Apr 02, 2025
German Consortium for Hereditary Breast and Ovarian Cancer, University Hospital Cologne
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:curation

According to the ACMG SVI adaptation criteria we chose these criteria: PM3 (medium pathogenic): ClinVar Eintrag: This missense change has been observed in individual(s) with Fanconi anemia (PMID: 29278735). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. , PM5 (medium pathogenic): RAD51C c.934C>T p.R312W =LP -

Breast-ovarian cancer, familial, susceptibility to, 3 Uncertain:1
-
Baylor Genetics
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.36
BayesDel_addAF
Pathogenic
0.23
D
BayesDel_noAF
Pathogenic
0.26
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.27
T;T
Eigen
Pathogenic
0.96
Eigen_PC
Pathogenic
0.91
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.95
D;D
M_CAP
Benign
0.062
D
MetaRNN
Pathogenic
0.97
D;D
MetaSVM
Uncertain
0.12
D
MutationAssessor
Pathogenic
3.5
.;M
PhyloP100
5.5
PrimateAI
Uncertain
0.61
T
PROVEAN
Uncertain
-3.4
.;D
REVEL
Uncertain
0.47
Sift
Pathogenic
0.0
.;D
Sift4G
Uncertain
0.0050
D;D
Polyphen
1.0
.;D
Vest4
0.92
MutPred
0.86
Loss of MoRF binding (P = 0.018);Loss of MoRF binding (P = 0.018);
MVP
0.95
MPC
0.90
ClinPred
0.99
D
GERP RS
6.1
Varity_R
0.80
gMVP
0.85
Mutation Taster
=19/81
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs779834376; hg19: chr17-56801431; API