5-132637167-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM5

The NM_005732.4(RAD50):​c.3442C>T​(p.Arg1148Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000048 in 1,459,488 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R1148H) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

RAD50
NM_005732.4 missense

Scores

7
5
6

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 3.60

Publications

0 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]
TH2LCRR (HGNC:40495): (T helper type 2 locus control region associated RNA)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM5
Other missense variant is known to change same aminoacid residue: Variant chr5-132637168-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 142677.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RAD50NM_005732.4 linkc.3442C>T p.Arg1148Cys missense_variant Exon 22 of 25 ENST00000378823.8 NP_005723.2
TH2LCRRNR_132124.1 linkn.153+991G>A intron_variant Intron 2 of 2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RAD50ENST00000378823.8 linkc.3442C>T p.Arg1148Cys missense_variant Exon 22 of 25 1 NM_005732.4 ENSP00000368100.4
ENSG00000283782ENST00000638452.2 linkc.3145C>T p.Arg1049Cys missense_variant Exon 24 of 27 5 ENSP00000492349.2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000480
AC:
7
AN:
1459488
Hom.:
0
Cov.:
30
AF XY:
0.00000551
AC XY:
4
AN XY:
726102
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33414
American (AMR)
AF:
0.00
AC:
0
AN:
44656
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26024
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39546
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86182
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53060
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5740
European-Non Finnish (NFE)
AF:
0.00000450
AC:
5
AN:
1110634
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60232
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.461
Heterozygous variant carriers
0
1
2
3
4
5
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
Bravo
AF:
0.0000113
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:2
Mar 20, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.R1148C variant (also known as c.3442C>T), located in coding exon 22 of the RAD50 gene, results from a C to T substitution at nucleotide position 3442. The arginine at codon 1148 is replaced by cysteine, an amino acid with highly dissimilar properties. 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.

Jul 08, 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 1148 of the RAD50 protein (p.Arg1148Cys). This variant is not present in population databases (gnomAD no frequency). 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: 408374). 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.

not provided Uncertain:1
Nov 03, 2021
Institute for Clinical Genetics, University Hospital TU Dresden, University Hospital TU Dresden
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
Uncertain
0.49
BayesDel_addAF
Pathogenic
0.44
D
BayesDel_noAF
Pathogenic
0.40
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.0
.;.;.;T
Eigen
Uncertain
0.52
Eigen_PC
Uncertain
0.56
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Benign
0.0
.;.;D;D
M_CAP
Benign
0.021
T
MetaRNN
Uncertain
0.67
D;D;D;D
MetaSVM
Uncertain
0.14
D
MutationAssessor
Benign
0.0
.;.;.;M
PhyloP100
3.6
PrimateAI
Pathogenic
0.85
D
PROVEAN
Benign
0.0
.;.;.;.
REVEL
Benign
0.0
Sift
Pathogenic
0.0
.;.;.;.
Sift4G
Pathogenic
0.0
.;.;.;D
Vest4
0.0
ClinPred
1.0
D
GERP RS
6.2
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.7
Varity_R
0.78
gMVP
0.89
Mutation Taster
=43/57
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs746841895; hg19: chr5-131972859; COSMIC: COSV54752226; COSMIC: COSV54752226; API