rs587781454
Variant summary
Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong
The NM_005732.4(RAD50):c.2165_2166insT(p.Lys722AsnfsTer6) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,613,226 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★★). 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 Pathogenic. Variant got 18 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RAD50 | ENST00000378823.8 | c.2165_2166insT | p.Lys722AsnfsTer6 | frameshift_variant | Exon 13 of 25 | 1 | NM_005732.4 | ENSP00000368100.4 | ||
ENSG00000283782 | ENST00000640655.2 | c.1868_1869insT | p.Lys623AsnfsTer6 | frameshift_variant | Exon 14 of 26 | 5 | ENSP00000491596.2 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152202Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000160 AC: 4AN: 250152Hom.: 0 AF XY: 0.0000222 AC XY: 3AN XY: 135210
GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461024Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3AN XY: 726858
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152202Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74352
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Pathogenic:2
The c.2165_2166insT pathogenic mutation, located in coding exon 13 of the RAD50 gene, results from an insertion of one nucleotide at position 2165, causing a translational frameshift with a predicted alternate stop codon (p.K722Nfs*6). This variant has been identified in at least two patients with a personal and family history of breast and/or ovarian cancer (Maxwell KN et al. Am. J. Hum. Genet. 2016 May;98:801-817; Chan GHJ et al. Oncotarget. 2018 Jul;9:30649-30660). 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 sequence change creates a premature translational stop signal (p.Lys722Asnfs*6) 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). This variant is present in population databases (rs587781454, 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: 408395). For these reasons, this variant has been classified as Pathogenic. -
RAD50-related disorder Pathogenic:1
The RAD50 c.2165_2166insT variant is predicted to result in a frameshift and premature protein termination (p.Lys722Asnfs*6). This variant has been reported in individuals with breast, prostate, non-small cell lung cancer and esophageal squamous cell carcinoma (Maxwell et al. 2016. PubMed ID: 27153395; Ko et al. 2021. PubMed ID: 34572942; Liang et al. 2022. PubMed ID: 36095024; Wang et al. 2022. PubMed ID: 36113475). It is interpreted as pathogenic in ClinVar (https://www.ncbi.nlm.nih.gov/clinvar/variation/408395/). This variant is reported in 0.022% of alleles in individuals of East Asian descent in gnomAD. Frameshift variants in RAD50 are expected to be pathogenic. This variant is interpreted as pathogenic. -
Nijmegen breakage syndrome-like disorder Pathogenic:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at