5-132618134-C-T
Variant summary
Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong
The NM_005732.4(RAD50):c.3229C>T(p.Arg1077*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000167 in 1,613,450 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. R1077R) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.
Frequency
Consequence
NM_005732.4 stop_gained
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.3229C>T | p.Arg1077* | stop_gained | Exon 21 of 25 | 1 | NM_005732.4 | ENSP00000368100.4 | ||
| ENSG00000283782 | ENST00000638452.2 | c.2932C>T | p.Arg978* | stop_gained | Exon 23 of 27 | 5 | ENSP00000492349.2 | 
Frequencies
GnomAD3 genomes  0.0000263  AC: 4AN: 151946Hom.:  0  Cov.: 32 show subpopulations 
GnomAD2 exomes  AF:  0.0000199  AC: 5AN: 251234 AF XY:  0.0000295   show subpopulations 
GnomAD4 exome  AF:  0.0000157  AC: 23AN: 1461504Hom.:  0  Cov.: 31 AF XY:  0.0000138  AC XY: 10AN XY: 727036 show subpopulations 
Age Distribution
GnomAD4 genome  0.0000263  AC: 4AN: 151946Hom.:  0  Cov.: 32 AF XY:  0.0000270  AC XY: 2AN XY: 74204 show subpopulations 
Age Distribution
ClinVar
Submissions by phenotype
Nijmegen breakage syndrome-like disorder    Pathogenic:3Other:1 
PVS1+PM2_Supporting -
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Variant interpreted as Pathogenic and reported on 12-04-2018 by Lab Invitae. GenomeConnect-Invitae Patient Insights Network assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. Registry team members make no attempt to reinterpret the clinical significance of the variant. Phenotypic details are available under supporting information. -
Hereditary cancer-predisposing syndrome    Pathogenic:2 
The p.R1077* pathogenic mutation (also known as c.3229C>T), located in coding exon 21 of the RAD50 gene, results from a C to T substitution at nucleotide position 3229. This changes the amino acid from an arginine to a stop codon within coding exon 21. This alteration was identified in a patient diagnosed with ovarian cancer (Lilyquist J et al. Gynecol. Oncol., 2017 11;147:375-380). 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.Arg1077*) 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 (rs368980595, gnomAD 0.004%). 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: 231200). RNA analysis performed to evaluate the impact of this premature translational stop signal on mRNA splicing indicates it does not significantly alter splicing (internal data). For these reasons, this variant has been classified as Pathogenic. -
not provided    Pathogenic:1 
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Computational scores
Source: 
Splicing
 Find out detailed SpliceAI scores and Pangolin per-transcript scores at