rs786201789
Variant summary
Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong
The NM_005732.4(RAD50):c.2202delC(p.Met735fs) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000119 in 1,602,478 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely 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 16 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RAD50 | ENST00000378823.8 | c.2202delC | p.Met735fs | frameshift_variant | Exon 13 of 25 | 1 | NM_005732.4 | ENSP00000368100.4 | ||
ENSG00000283782 | ENST00000640655.2 | c.1905delC | p.Met636fs | frameshift_variant | Exon 14 of 26 | 5 | ENSP00000491596.2 |
Frequencies
GnomAD3 genomes AF: 0.0000920 AC: 14AN: 152122Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000814 AC: 2AN: 245594Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 133246
GnomAD4 exome AF: 0.00000345 AC: 5AN: 1450356Hom.: 0 Cov.: 30 AF XY: 0.00000277 AC XY: 2AN XY: 722216
GnomAD4 genome AF: 0.0000920 AC: 14AN: 152122Hom.: 0 Cov.: 32 AF XY: 0.0000942 AC XY: 7AN XY: 74316
ClinVar
Submissions by phenotype
Nijmegen breakage syndrome-like disorder Pathogenic:3
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Hereditary cancer-predisposing syndrome Pathogenic:2
The c.2202delC pathogenic mutation (also known as p.M735*), located in coding exon 13 of the RAD50 gene, results from a deletion of one nucleotide at position 2202. This changes the amino acid from a methionine to a stop codon within coding exon 13. 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.Met735*) 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 (rs769230013, gnomAD 0.006%). 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: 184917). For these reasons, this variant has been classified as Pathogenic. -
RAD50-related disorder Pathogenic:1
The RAD50 c.2202delC variant is predicted to result in premature protein termination (p.Met735*). This variant was reported in individuals with breast and/or ovarian cancer (Table S7, Lilyquist et al. 2017. PubMed ID: 28888541; Table S2, Espinel et al. 2022. PubMed ID: 35626031). This variant is reported in 0.0057% of alleles in individuals of Latino descent in gnomAD (http://gnomad.broadinstitute.org/variant/5-131931494-GC-G) and is interpreted as pathogenic or likely pathogenic in ClinVar (https://www.ncbi.nlm.nih.gov/clinvar/variation/184917/). This variant is interpreted as likely pathogenic. -
not provided Pathogenic:1
The RAD50 c.2202del (p.Met735*) variant alters the translational reading frame of the RAD50 mRNA and causes the premature termination of RAD50 protein synthesis. This variant has been reported in the published literature in individuals with ovarian cancer (PMID: 28888541 (2017)) and breast and/or ovarian cancer (PMID: 35626031 (2022)). The frequency of this variant in the general population, 0.000011 (3/276904 chromosomes (Genome Aggregation Database, http://gnomad.broadinstitute.org)), is consistent with pathogenicity. Based on the available information, this variant is classified as pathogenic. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at