rs587780155
Variant summary
Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PVS1PP5
The NM_005732.4(RAD50):c.326_329delCAGA(p.Thr109AsnfsTer20) variant causes a frameshift change. The variant allele was found at a frequency of 0.000018 in 1,611,166 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Variant results in nonsense mediated mRNA decay.
Frequency
Consequence
NM_005732.4 frameshift
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 9 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RAD50 | ENST00000378823.8 | c.326_329delCAGA | p.Thr109AsnfsTer20 | frameshift_variant | Exon 3 of 25 | 1 | NM_005732.4 | ENSP00000368100.4 | ||
ENSG00000283782 | ENST00000640655.2 | c.29_32delCAGA | p.Thr10AsnfsTer20 | frameshift_variant | Exon 4 of 26 | 5 | ENSP00000491596.2 |
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152238Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000318 AC: 8AN: 251216Hom.: 0 AF XY: 0.0000295 AC XY: 4AN XY: 135770
GnomAD4 exome AF: 0.0000178 AC: 26AN: 1458928Hom.: 0 AF XY: 0.0000248 AC XY: 18AN XY: 726022
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152238Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74382
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Pathogenic:3
This sequence change creates a premature translational stop signal (p.Thr109Asnfs*20) in the RAD50 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in RAD50 are known to be pathogenic (PMID: 19409520). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This premature translational stop signal has been observed in individual(s) with breast cancer (PMID: 26023681). ClinVar contains an entry for this variant (Variation ID: 128017). For these reasons, this variant has been classified as Pathogenic. -
The c.326_329delCAGA pathogenic mutation, located in coding exon 3 of the RAD50 gene, results from a deletion of 4 nucleotides at nucleotide positions 326 to 329, causing a translational frameshift with a predicted alternate stop codon (p.T109Nfs*20). In one study, this mutation was reported in 6/60,466 breast cancer cases and in 1/53,461 controls (Dorling et al. N Engl J Med. 2021 02;384:428-439).This mutation has also been reported in multiple individuals with personal and/or family histories of breast, colon, prostate, and other cancers (Foley SB et al. EBioMedicine. 2015 Jan;2:74-81; Schrader KA et al. JAMA Oncol. 2016 Jan;2:104-11; Kotoula V et al. Am J Cancer Res, 2017 Jan;7:98-114; Coppa A et al. Cancer Med. 2018 Jan;7:46-55; Perkins BA et al. Proc. Natl. Acad. Sci. U.S.A. 2018 Apr;115:3686-3691; Carlo MI et al. J Clin Oncol, 2020 02;38:406-414; Akcay IM et al. Int J Cancer, 2021 01;148:285-295). This variant is considered to be rare based on population cohorts in the Genome Aggregation Database (gnomAD). In addition to the clinical data presented in the literature, this alteration is expected to result in loss of function by premature protein truncation or nonsense-mediated mRNA decay. As such, this alteration is interpreted as a disease-causing mutation. -
This variation is a deletion of 4 nucleotides from exon 3 of the RAD50 mRNA, causing a frameshift after codon 109 and the creation of a premature translation stop signal 20 amino acid residues later - p.(Thr109Asnfs*20). This is expected to result in an absent or disrupted protein product. The mutation database ClinVar contains entries for this variant (Variation ID: 128017). -
Nijmegen breakage syndrome-like disorder Pathogenic:2
PVS1, PM2 -
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RAD50-related disorder Pathogenic:1
The RAD50 c.326_329delCAGA variant is predicted to result in a frameshift and premature protein termination (p.Thr109Asnfs*20). This variant has been reported in individuals with various cancers, including breast cancer, soft tissue sarcoma, or urothelial cancer (Foley et al. 2015. PubMed ID: 26023681; Schrader et al. 2016. PubMed ID: 26556299, reported as c.323_326delAGAC; Perkins et al. 2018. PubMed ID: 29555771; Carlo et al. 2020. PubMed ID: 31794323; Akcay et al. 2020. PubMed ID: 32658311, supplementary data). This variant is reported in 0.0070% of alleles in individuals of European (Non-Finnish) descent in gnomAD. Frameshift variants in RAD50 are expected to be pathogenic. This variant is interpreted as pathogenic. -
Breast carcinoma Pathogenic:1
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not provided Uncertain:1
RAD50: PVS1:Moderate, PM2:Supporting -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at