rs544654228

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_002878.4(RAD51D):​c.493C>T​(p.Arg165Trp) variant causes a missense change. The variant allele was found at a frequency of 0.0000688 in 1,612,350 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R165Q) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000071 ( 0 hom. )

Consequence

RAD51D
NM_002878.4 missense

Scores

9
9

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:14B:1

Conservation

PhyloP100: 4.82
Variant links:
Genes affected
RAD51D (HGNC:9823): (RAD51 paralog D) The protein encoded by this gene is a member of the RAD51 protein family. RAD51 family members are highly similar to bacterial RecA and Saccharomyces cerevisiae Rad51, which are known to be involved in the homologous recombination and repair of DNA. This protein forms a complex with several other members of the RAD51 family, including RAD51L1, RAD51L2, and XRCC2. The protein complex formed with this protein has been shown to catalyze homologous pairing between single- and double-stranded DNA, and is thought to play a role in the early stage of recombinational repair of DNA. Alternative splicing results in multiple transcript variants. Read-through transcription also exists between this gene and the downstream ring finger and FYVE-like domain containing 1 (RFFL) gene. [provided by RefSeq, Jan 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High AC in GnomAd4 at 8 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RAD51DNM_002878.4 linkc.493C>T p.Arg165Trp missense_variant Exon 6 of 10 ENST00000345365.11 NP_002869.3 O75771-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RAD51DENST00000345365.11 linkc.493C>T p.Arg165Trp missense_variant Exon 6 of 10 1 NM_002878.4 ENSP00000338790.6 O75771-1
ENSG00000267618ENST00000593039.5 linkc.16C>T p.Arg6Trp missense_variant Exon 2 of 7 2 ENSP00000466834.1 K7EN88

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152202
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000441
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000404
AC:
10
AN:
247668
Hom.:
0
AF XY:
0.0000373
AC XY:
5
AN XY:
133870
show subpopulations
Gnomad AFR exome
AF:
0.0000641
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000545
Gnomad SAS exome
AF:
0.0000665
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000536
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000705
AC:
103
AN:
1460030
Hom.:
0
Cov.:
31
AF XY:
0.0000730
AC XY:
53
AN XY:
726106
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
Gnomad4 AMR exome
AF:
0.0000225
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000466
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000774
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.0000525
AC:
8
AN:
152320
Hom.:
0
Cov.:
32
AF XY:
0.0000537
AC XY:
4
AN XY:
74476
show subpopulations
Gnomad4 AFR
AF:
0.0000722
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.0000580
Hom.:
0
Bravo
AF:
0.0000793
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.0000741
AC:
9
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:14Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:5
Aug 01, 2018
GeneKor MSA
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Dec 27, 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 tryptophan at codon 165 of the RAD51D 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 affected with breast cancer, together with a pathogenic truncation variant in the ATM gene (PMID: 29371908). This variant has been reported in an unaffected control individual in a breast and ovarian cancer case-control study (PMID: 21822267). This variant has been identified in 13/279074 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. -

Jan 05, 2018
True Health Diagnostics
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Aug 13, 2021
Sema4, Sema4
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: curation

- -

Oct 03, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.R165W variant (also known as c.493C>T), located in coding exon 6 of the RAD51D gene, results from a C to T substitution at nucleotide position 493. The arginine at codon 165 is replaced by tryptophan, an amino acid with dissimilar properties. This alteration was identified in an individual diagnosed with breast and/or ovarian cancer who previously tested negative for a known familial BRCA1/2 mutation (Dominguez-Valentin M et al. Hered Cancer Clin Pract 2018 Jan;16:4). This amino acid position is poorly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -

Breast-ovarian cancer, familial, susceptibility to, 4 Uncertain:3Benign:1
Feb 26, 2024
Baylor Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Dec 13, 2024
Myriad Genetics, Inc.
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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]. -

Jan 27, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 165 of the RAD51D protein (p.Arg165Trp). This variant is present in population databases (rs544654228, gnomAD 0.01%). This missense change has been observed in individual(s) with RAD51D-related conditions (PMID: 31159747, 34284872). ClinVar contains an entry for this variant (Variation ID: 127891). 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. -

Feb 28, 2024
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Uncertain:3
Aug 05, 2024
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The RAD51D c.493C>T (p.Arg165Trp) variant has been reported in the published literature in individuals with breast cancer and a personal and/or family history of breast and/or ovarian cancer (PMID: 29371908 (2018), 31159747 (2019), 33471991 (2021)), see also LOVD (http://databases.lovd.nl/shared/genes/RAD51D). It has also been observed in reportedly healthy individuals (PMIDs: 21822267 (2011), 26261251 (2015), 33471991 (2021)), see also LOVD (http://databases.lovd.nl/shared/genes/RAD51D), 36243179 (2022)). The frequency of this variant in the general population, 0.00012 (3/24306 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 damaging. Based on the available information, we are unable to determine the clinical significance of this variant. -

Dec 01, 2021
CeGaT Center for Human Genetics Tuebingen
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Aug 11, 2024
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: 26261251, 31159747, 32579932, 29371908, 21822267, 21111057, 14704354, 34284872, 33471991, 36243179) -

not specified Uncertain:2
Mar 04, 2025
Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jun 12, 2023
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: RAD51D c.493C>T (p.Arg165Trp) results in a non-conservative amino acid change located in the DNA recombination and repair protein Rad51-like, C-terminal domain; DNA recombination and repair protein RecA-like, ATP-binding domain; AAA+ ATPase domain of the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 4.6e-05 in 259332 control chromosomes. This frequency is not significantly higher than estimated for a pathogenic variant in RAD51D causing Hereditary Breast And Ovarian Cancer Syndrome (4.6e-05 vs 0.00013), allowing no conclusion about variant significance. c.493C>T has been reported in the literature in individuals affected with Hereditary Breast And Ovarian Cancer Syndrome (Dominguez-Valentin_2018 and Krivokuca_2022). These reports do not provide unequivocal conclusions about association of the variant with Hereditary Breast And Ovarian Cancer Syndrome. Co-occurrences with other pathogenic variant(s) have been reported (ATM c.9139C>T, p.Arg3047Ter), providing supporting evidence for a benign role. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 21822267, 26261251, 29371908, 34284872). Ten clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 and classified as VUS (n=9) and likely pathogenic (n=1). Based on the evidence outlined above, the variant was classified as uncertain significance. -

Lynch syndrome 1 Pathogenic:1
Jun 05, 2019
Clinical Cancer Genetics and Family Consultants, Athens Medical Center
Significance: Likely pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is denoted RAD51D c.493C>T at the DNA level, p.Arg165Trp. The arginine residue is weakly conserved and there is a moderate physicochemical difference between Arginine and Tryptophan. This variant has not been reported in the literature in individuals with RAD51D related disease. It has never been reported so far in Greek population. In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect. We observed this variant in a woman with ovarian cancer at the age of 44 years and her brother with undifferentiated gastric cancer at the age of 43 years. Two other sisters are healthy carriers at the age of 53 and 50 years. There was also ovarian and prostate cancer in second degree family members, from the paternal side. The phenotype in this family was consistent with Lynch Syndrome type II. This inherited syndrome in the above family has apparently a causative relation with RAD51D mutation c.493C>T, which is classified as likely pathogenic. -

Breast and/or ovarian cancer Uncertain:1
Mar 13, 2023
CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.25
CADD
Pathogenic
33
DANN
Benign
0.97
DEOGEN2
Benign
0.42
.;.;T;T;.;.;.;T
Eigen
Uncertain
0.53
Eigen_PC
Uncertain
0.55
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.91
D;D;.;D;D;D;D;D
M_CAP
Uncertain
0.10
D
MetaRNN
Uncertain
0.43
T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.30
T
MutationAssessor
Benign
1.7
.;.;L;L;.;.;.;.
PROVEAN
Uncertain
-3.2
.;.;D;D;.;.;.;.
REVEL
Benign
0.29
Sift
Uncertain
0.0020
.;.;D;D;.;.;.;.
Sift4G
Uncertain
0.0020
D;D;D;D;D;D;D;.
Polyphen
0.96, 1.0
.;.;D;D;D;.;.;.
Vest4
0.28
MutPred
0.53
.;.;Loss of disorder (P = 0.0172);Loss of disorder (P = 0.0172);.;.;.;.;
MVP
0.90
MPC
0.37
ClinPred
0.46
T
GERP RS
5.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.61
gMVP
0.30

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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.

Other links and lift over

dbSNP: rs544654228; hg19: chr17-33433488; COSMIC: COSV105193567; COSMIC: COSV105193567; API