rs199895166

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_005732.4(RAD50):​c.2903G>A​(p.Gly968Glu) variant causes a missense change. The variant allele was found at a frequency of 0.0000341 in 1,611,504 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G968R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

RAD50
NM_005732.4 missense

Scores

2
6
9

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:7

Conservation

PhyloP100: 6.00

Publications

3 publications found
Variant links:
Genes affected
RAD50 (HGNC:9816): (RAD50 double strand break repair protein) The protein encoded by this gene is highly similar to Saccharomyces cerevisiae Rad50, a protein involved in DNA double-strand break repair. This protein forms a complex with MRE11 and NBS1. The protein complex binds to DNA and displays numerous enzymatic activities that are required for nonhomologous joining of DNA ends. This protein, cooperating with its partners, is important for DNA double-strand break repair, cell cycle checkpoint activation, telomere maintenance, and meiotic recombination. Knockout studies of the mouse homolog suggest this gene is essential for cell growth and viability. Mutations in this gene are the cause of Nijmegen breakage syndrome-like disorder.[provided by RefSeq, Apr 2010]
RAD50 Gene-Disease associations (from GenCC):
  • Nijmegen breakage syndrome-like disorder
    Inheritance: AR Classification: STRONG, LIMITED Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
  • familial ovarian cancer
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
  • 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_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.14673278).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RAD50NM_005732.4 linkc.2903G>A p.Gly968Glu missense_variant Exon 18 of 25 ENST00000378823.8 NP_005723.2 Q92878-1A5D6Y3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RAD50ENST00000378823.8 linkc.2903G>A p.Gly968Glu missense_variant Exon 18 of 25 1 NM_005732.4 ENSP00000368100.4 Q92878-1
ENSG00000283782ENST00000638452.2 linkc.2606G>A p.Gly869Glu missense_variant Exon 20 of 27 5 ENSP00000492349.2 A0A1W2PQ90

Frequencies

GnomAD3 genomes
AF:
0.000158
AC:
24
AN:
152028
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000556
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:
0.0000523
AC:
13
AN:
248662
AF XY:
0.0000370
show subpopulations
Gnomad AFR exome
AF:
0.000783
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000889
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000212
AC:
31
AN:
1459358
Hom.:
0
Cov.:
31
AF XY:
0.0000124
AC XY:
9
AN XY:
725812
show subpopulations
African (AFR)
AF:
0.000778
AC:
26
AN:
33408
American (AMR)
AF:
0.0000224
AC:
1
AN:
44622
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26086
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39562
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85450
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53338
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5708
European-Non Finnish (NFE)
AF:
0.00000180
AC:
2
AN:
1110884
Other (OTH)
AF:
0.0000332
AC:
2
AN:
60300
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
2
3
5
6
8
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:
0.000158
AC:
24
AN:
152146
Hom.:
0
Cov.:
32
AF XY:
0.000108
AC XY:
8
AN XY:
74384
show subpopulations
African (AFR)
AF:
0.000554
AC:
23
AN:
41496
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4812
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68002
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.540
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.0000553
Hom.:
0
Bravo
AF:
0.000147
ESP6500AA
AF:
0.000242
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000496
AC:
6
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Nijmegen breakage syndrome-like disorder Uncertain:3
Feb 02, 2022
Sema4, Sema4
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:curation

- -

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

- -

Apr 18, 2022
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Hereditary cancer-predisposing syndrome Uncertain:2
Feb 17, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.G968E variant (also known as c.2903G>A), located in coding exon 18 of the RAD50 gene, results from a G to A substitution at nucleotide position 2903. The glycine at codon 968 is replaced by glutamic acid, an amino acid with similar properties. This alteration has been detected in 1/1824 patients with triple negative breast cancer who were unselected for a family history of breast or ovarian cancer (Couch FJ et al. J. Clin. Oncol., 2015 Feb;33:304-11). This alteration was reported in 1/60,466 breast cancer cases and in 0/53,461 controls (Dorling et al. N Engl J Med. 2021 02;384:428-439). This alteration was detected in a patient with uterine serous carcinoma (Frimer M et al. Gynecol Oncol, 2016 Apr;141:101-7). This variant was also identified in a cohort of 3,579 African males diagnosed with prostate cancer who underwent multi-gene panel testing of 19 DNA repair and cancer predisposition genes (Matejcic M et al. JCO Precis Oncol, 2020 Jan;4:32-43). 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. -

Jun 28, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 968 of the RAD50 protein (p.Gly968Glu). This variant is present in population databases (rs199895166, gnomAD 0.07%). This missense change has been observed in individual(s) with breast cancer and endometrial cancer (PMID: 25452441, 27016235). ClinVar contains an entry for this variant (Variation ID: 184957). 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 not expected to disrupt RAD50 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. -

not specified Uncertain:1
Jul 13, 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: RAD50 c.2903G>A (p.Gly968Glu) results in a non-conservative amino acid change in 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 5.2e-05 in 248662 control chromosomes in gnomAD. This frequency is not significantly higher than estimated for a pathogenic variant in RAD50 causing Hereditary Breast And Ovarian Cancer Syndrome (5.2e-05 vs 6.3e-05), allowing no conclusion about variant significance. c.2903G>A has been reported in the literature in individuals affected with uterine serous carcinoma or Breast Cancer without strong evidence for causality (example: Couch_2015, Frimer_2016). These reports do not provide unequivocal conclusions about association of the variant with Hereditary Breast And Ovarian Cancer Syndrome. 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: 25452441, 27016235). Four submitters have cited clinical-significance assessments for this variant to ClinVar after 2014. All submitters classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as uncertain significance. -

not provided Uncertain:1
Oct 31, 2024
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The RAD50 c.2903G>A (p.Gly968Glu) variant has been reported in the published literature in individuals affected with uterine serous carcinoma (PMID: 27016235 (2016)), kidney renal clear cell carcinoma (PMID: 26689913 (2015)), and breast cancer (PMIDs: 33471991 (2021), 25452441 (2015), see also see also LOVD (http://databases.lovd.nl/shared/)). The frequency of this variant in the general population, 0.00062 (15/24030 chromosomes in African/African American subpopulation (Genome Aggregation Database, http://gnomad.broadinstitute.org)), is higher than would generally be expected for pathogenic variants in this gene. Analysis of this variant using bioinformatics tools for the prediction of the effect of amino acid changes on protein structure and function yielded conflicting predictions that this variant is benign or damaging. Based on the available information, we are unable to determine the clinical significance of this variant. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.21
BayesDel_addAF
Uncertain
0.021
T
BayesDel_noAF
Pathogenic
0.18
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.23
.;.;.;T
Eigen
Uncertain
0.34
Eigen_PC
Uncertain
0.44
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.84
.;.;T;T
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.15
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.7
.;.;.;L
PhyloP100
6.0
PrimateAI
Uncertain
0.69
T
REVEL
Uncertain
0.33
Sift4G
Benign
0.099
.;.;.;T
Polyphen
0.60
.;.;.;P
Vest4
0.41
MVP
0.73
ClinPred
0.20
T
GERP RS
5.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.50
gMVP
0.51
Mutation Taster
=52/48
polymorphism

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

Other links and lift over

dbSNP: rs199895166; hg19: chr5-131944882; COSMIC: COSV108089022; API