rs769196703

Variant summary

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

The NM_005732.4(RAD50):​c.761G>A​(p.Arg254His) variant causes a missense change. The variant allele was found at a frequency of 0.0000342 in 1,460,310 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 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. R254C) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

RAD50
NM_005732.4 missense

Scores

2
2
14

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 4.00

Publications

2 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=0.1208089).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RAD50NM_005732.4 linkc.761G>A p.Arg254His missense_variant Exon 6 of 25 ENST00000378823.8 NP_005723.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RAD50ENST00000378823.8 linkc.761G>A p.Arg254His missense_variant Exon 6 of 25 1 NM_005732.4 ENSP00000368100.4
ENSG00000283782ENST00000638452.2 linkc.464G>A p.Arg155His missense_variant Exon 8 of 27 5 ENSP00000492349.2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.0000642
AC:
16
AN:
249412
AF XY:
0.0000888
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000342
AC:
50
AN:
1460310
Hom.:
0
Cov.:
31
AF XY:
0.0000441
AC XY:
32
AN XY:
726416
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33366
American (AMR)
AF:
0.00
AC:
0
AN:
44558
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26102
East Asian (EAS)
AF:
0.000101
AC:
4
AN:
39562
South Asian (SAS)
AF:
0.000361
AC:
31
AN:
85952
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53346
Middle Eastern (MID)
AF:
0.000175
AC:
1
AN:
5724
European-Non Finnish (NFE)
AF:
0.0000108
AC:
12
AN:
1111382
Other (OTH)
AF:
0.0000332
AC:
2
AN:
60318
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.463
Heterozygous variant carriers
0
3
6
8
11
14
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
Cov.:
32
Alfa
AF:
0.00
Hom.:
0
ExAC
AF:
0.0000577
AC:
7

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:2
Aug 29, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.R254H variant (also known as c.761G>A), located in coding exon 6 of the RAD50 gene, results from a G to A substitution at nucleotide position 761. The arginine at codon 254 is replaced by histidine, an amino acid with highly similar properties. 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.

Jan 06, 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 histidine, which is basic and polar, at codon 254 of the RAD50 protein (p.Arg254His). This variant is present in population databases (rs769196703, gnomAD 0.05%). This variant has not been reported in the literature in individuals affected with RAD50-related conditions. ClinVar contains an entry for this variant (Variation ID: 220625). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Benign". The histidine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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 provided Uncertain:1
Apr 14, 2024
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The RAD50 c.761G>A (p.Arg254His) variant has been reported in the published literature in individuals with breast cancer (PMID: 30982232 (2019), 33471991 (2021), see also LOVD (http://databases.lovd.nl/shared/genes/RAD50)). The frequency of this variant in the general population, 0.00046 (14/30382 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 benign. Based on the available information, we are unable to determine the clinical significance of this variant.

Nijmegen breakage syndrome-like disorder Uncertain:1
Jan 24, 2024
Baylor Genetics
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
0.088
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.52
CADD
Uncertain
25
DANN
Benign
0.89
DEOGEN2
Benign
0.0
.;.;.;T;T
Eigen
Benign
0.088
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Benign
0.0
.;.;D;D;D
M_CAP
Benign
0.0048
T
MetaRNN
Benign
0.12
T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.0
.;.;.;L;.
PhyloP100
4.0
PrimateAI
Benign
0.31
T
PROVEAN
Benign
0.0
.;.;.;.;D
REVEL
Benign
0.0
Sift
Pathogenic
0.0
.;.;.;.;D
Sift4G
Pathogenic
0.0
.;.;.;T;T
Vest4
0.0
ClinPred
0.14
T
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.081
gMVP
0.20
Mutation Taster
=89/11
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: rs769196703; hg19: chr5-131923258; COSMIC: COSV54755707; COSMIC: COSV54755707; API