rs876660957
Variant summary
Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong
The NM_005732.4(RAD50):c.1052-2A>C variant causes a splice acceptor, intron change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000373 in 1,608,466 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely pathogenic (★★).
Frequency
Consequence
NM_005732.4 splice_acceptor, intron
Scores
Clinical Significance
Conservation
Publications
- Nijmegen breakage syndrome-like disorderInheritance: AR Classification: STRONG, LIMITED Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
- familial ovarian cancerInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
- hereditary breast carcinomaInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Pathogenic. The variant received 16 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RAD50 | ENST00000378823.8 | c.1052-2A>C | splice_acceptor_variant, intron_variant | Intron 7 of 24 | 1 | NM_005732.4 | ENSP00000368100.4 | |||
ENSG00000283782 | ENST00000638452.2 | c.755-2A>C | splice_acceptor_variant, intron_variant | Intron 9 of 26 | 5 | ENSP00000492349.2 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152094Hom.: 0 Cov.: 32 show subpopulations
GnomAD4 exome AF: 0.00000343 AC: 5AN: 1456372Hom.: 0 Cov.: 32 AF XY: 0.00000552 AC XY: 4AN XY: 724106 show subpopulations
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152094Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74278 show subpopulations
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Pathogenic:2
This sequence change affects an acceptor splice site in intron 7 of the RAD50 gene. RNA analysis indicates that disruption of this splice site induces altered splicing and may result in an absent or disrupted protein product. This variant is present in population databases (no rsID available, gnomAD 0.007%). Disruption of this splice site has been observed in individual(s) with pancreatic adenocarcinoma (PMID: 30067863). ClinVar contains an entry for this variant (Variation ID: 234249). Studies have shown that disruption of this splice site results in activation of a cryptic splice site and introduces a premature termination codon (Invitae). The resulting mRNA is expected to undergo nonsense-mediated decay. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -
The c.1052-2A>C intronic variant results from an A to C substitution two nucleotides upstream from coding exon 8 in the RAD50 gene. This variant is considered to be rare based on population cohorts in the Genome Aggregation Database (gnomAD). This nucleotide position is highly conserved in available vertebrate species. In silico splice site analysis predicts that this alteration will weaken the native splice acceptor site and will result in the creation or strengthening of a novel splice acceptor site. RNA studies have demonstrated that this alteration results in abnormal splicing in the set of samples tested (Ambry internal data). Alterations that disrupt the canonical splice site are expected to cause aberrant splicing, resulting in an abnormal protein or a transcript that is subject to nonsense-mediated mRNA decay. As such, this alteration is classified as likely 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