rs549559726

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_005732.4(RAD50):​c.2209C>G​(p.Gln737Glu) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000715 in 1,609,376 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000075 ( 2 hom. )

Consequence

RAD50
NM_005732.4 missense, splice_region

Scores

1
2
16
Splicing: ADA: 0.0009128
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:1

Conservation

PhyloP100: 4.78
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 Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.025467187).
BS2
High Homozygotes in GnomAdExome4 at 2 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RAD50NM_005732.4 linkc.2209C>G p.Gln737Glu missense_variant, splice_region_variant Exon 14 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.2209C>G p.Gln737Glu missense_variant, splice_region_variant Exon 14 of 25 1 NM_005732.4 ENSP00000368100.4 Q92878-1
ENSG00000283782ENST00000640655.2 linkc.1912C>G p.Gln638Glu missense_variant, splice_region_variant Exon 15 of 26 5 ENSP00000491596.2 A0A1W2PQ90

Frequencies

GnomAD3 genomes
AF:
0.0000395
AC:
6
AN:
152024
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00115
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000526
AC:
13
AN:
247246
Hom.:
0
AF XY:
0.0000598
AC XY:
8
AN XY:
133688
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000715
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000748
AC:
109
AN:
1457234
Hom.:
2
Cov.:
31
AF XY:
0.0000690
AC XY:
50
AN XY:
725010
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00273
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.02e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152142
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74384
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00116
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.0000824
AC:
10
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:5Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
Sep 26, 2024
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Nov 18, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces glutamine, which is neutral and polar, with glutamic acid, which is acidic and polar, at codon 737 of the RAD50 protein (p.Gln737Glu). This variant is present in population databases (rs549559726, gnomAD 0.07%). This missense change has been observed in individual(s) with biliary tract cancer and/or pancreatic cancer (PMID: 31666926, 36135357). ClinVar contains an entry for this variant (Variation ID: 187622). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. 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
Feb 13, 2025
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.2209C>G (p.Gln737Glu) results in a conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. Consensus agreement among computation tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 5.3e-05 in 247246 control chromosomes, predominantly at a frequency of 0.00071 within the East Asian subpopulation in the gnomAD database. This frequency is not significantly higher than estimated for a pathogenic variant in RAD50 causing Nijmegen Breakage Syndrome-Like Disorder (5.3e-05 vs 0.0024), allowing no conclusion about variant significance. c.2209C>G has been reported in the literature in an individual affected with biliary tract carcinoma (BTC) (example, Terashima_2019). These report(s) do not provide unequivocal conclusions about association of the variant with Nijmegen Breakage Syndrome-Like Disorder/RAD50-associated cancers. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication have been ascertained in the context of this evaluation (PMID: 31666926). ClinVar contains an entry for this variant (Variation ID: 187622). Based on the evidence outlined above, the variant was classified as uncertain significance. -

not provided Uncertain:1
Nov 14, 2023
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The RAD50 c.2209C>G (p.Gln737Glu) variant has been reported in the published literature in individuals affected with pancreatic cancer (PMID: 36135357 (2022)), ovarian cancer (PMID: 32019284 (2020)), and bilary tract cancer (PMID: 31666926 (2019)). The frequency of this variant in the general population, 0.00071 (13/18184 chromosomes in East Asian 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 deleterious or benign. Based on the available information, we are unable to determine the clinical significance of this variant. -

Hereditary breast ovarian cancer syndrome Uncertain:1
May 01, 2019
Cancer Genomics Group, Japanese Foundation For Cancer Research
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: research

- -

Nijmegen breakage syndrome-like disorder Uncertain:1
Oct 31, 2018
Fulgent Genetics, Fulgent 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
0.099
BayesDel_addAF
Benign
-0.44
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
17
DANN
Uncertain
0.98
DEOGEN2
Benign
0.059
.;.;.;T
Eigen
Benign
-0.31
Eigen_PC
Benign
-0.11
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.73
.;.;T;T
M_CAP
Benign
0.0053
T
MetaRNN
Benign
0.025
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.6
.;.;.;L
PrimateAI
Uncertain
0.55
T
PROVEAN
Benign
-1.1
.;.;.;N
REVEL
Benign
0.076
Sift
Benign
0.45
.;.;.;T
Sift4G
Benign
1.0
.;.;.;T
Polyphen
0.0
.;.;.;B
Vest4
0.36
MutPred
0.44
.;.;.;Loss of MoRF binding (P = 0.0738);
MVP
0.48
ClinPred
0.091
T
GERP RS
4.3
Varity_R
0.22
gMVP
0.22

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00091
dbscSNV1_RF
Benign
0.072
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: rs549559726; hg19: chr5-131938993; COSMIC: COSV54757231; API