NM_005732.4:c.760C>T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_005732.4(RAD50):​c.760C>T​(p.Arg254Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000192 in 1,612,140 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

RAD50
NM_005732.4 missense

Scores

10
9

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 4.85
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.14274293).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RAD50NM_005732.4 linkc.760C>T p.Arg254Cys missense_variant Exon 6 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.760C>T p.Arg254Cys missense_variant Exon 6 of 25 1 NM_005732.4 ENSP00000368100.4 Q92878-1
ENSG00000283782ENST00000640655.2 linkc.463C>T p.Arg155Cys missense_variant Exon 7 of 26 5 ENSP00000491596.2 A0A1W2PQ90

Frequencies

GnomAD3 genomes
AF:
0.0000921
AC:
14
AN:
152004
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000290
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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
GnomAD3 exomes
AF:
0.0000241
AC:
6
AN:
249108
Hom.:
0
AF XY:
0.0000222
AC XY:
3
AN XY:
134978
show subpopulations
Gnomad AFR exome
AF:
0.000191
Gnomad AMR exome
AF:
0.0000583
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000330
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000116
AC:
17
AN:
1460016
Hom.:
0
Cov.:
31
AF XY:
0.0000124
AC XY:
9
AN XY:
726282
show subpopulations
Gnomad4 AFR exome
AF:
0.0000300
Gnomad4 AMR exome
AF:
0.0000898
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000253
Gnomad4 SAS exome
AF:
0.0000117
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000900
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000920
AC:
14
AN:
152124
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74360
show subpopulations
Gnomad4 AFR
AF:
0.000289
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000662
Hom.:
0
Bravo
AF:
0.0000642
ExAC
AF:
0.0000412
AC:
5

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:2
Apr 10, 2024
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 cysteine, which is neutral and slightly polar, at codon 254 of the RAD50 protein (p.Arg254Cys). This variant is present in population databases (rs555367432, gnomAD 0.02%). 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: 187507). 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 RAD50 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. -

Dec 13, 2022
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.R254C variant (also known as c.760C>T), located in coding exon 6 of the RAD50 gene, results from a C to T substitution at nucleotide position 760. The arginine at codon 254 is replaced by cysteine, an amino acid with highly dissimilar 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. -

Nijmegen breakage syndrome-like disorder Uncertain:1
Feb 10, 2024
Baylor Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Ovarian cancer Benign:1
Jan 01, 2022
Laboratory of Molecular Epidemiology of Birth Defects, West China Second University Hospital, Sichuan University
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.32
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.49
.;.;.;T;T
Eigen
Uncertain
0.20
Eigen_PC
Uncertain
0.36
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.88
.;.;D;D;D
M_CAP
Benign
0.0089
T
MetaRNN
Benign
0.14
T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.5
.;.;.;M;.
PrimateAI
Benign
0.35
T
PROVEAN
Uncertain
-4.3
.;.;.;.;D
REVEL
Benign
0.19
Sift
Uncertain
0.0010
.;.;.;.;D
Sift4G
Uncertain
0.021
.;.;.;D;D
Polyphen
0.0010
.;.;.;B;.
Vest4
0.47
MVP
0.60
ClinPred
0.63
D
GERP RS
5.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.17
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: rs555367432; hg19: chr5-131923257; COSMIC: COSV54757797; COSMIC: COSV54757797; API