5-132592001-T-G
Variant summary
Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2
The NM_005732.4(RAD50):c.1760T>G(p.Ile587Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,612,952 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I587L) has been classified as Likely benign.
Frequency
Consequence
NM_005732.4 missense
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: Uncertain_significance. The variant received 2 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| RAD50 | NM_005732.4 | c.1760T>G | p.Ile587Ser | missense_variant | Exon 11 of 25 | ENST00000378823.8 | NP_005723.2 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000658 AC: 1AN: 152058Hom.: 0 Cov.: 32 show subpopulations
GnomAD4 exome AF: 0.00000274 AC: 4AN: 1460894Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2AN XY: 726778 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000658 AC: 1AN: 152058Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74258 show subpopulations
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:2
This sequence change replaces isoleucine with serine at codon 587 of the RAD50 protein (p.Ile587Ser). The isoleucine residue is highly conserved and there is a large physicochemical difference between isoleucine and serine. This variant is present in population databases (rs769527393, ExAC 0.01%). This variant has not been reported in the literature in individuals with RAD50-related disease. ClinVar contains an entry for this variant (Variation ID: 486237). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.
The p.I587S variant (also known as c.1760T>G), located in coding exon 11 of the RAD50 gene, results from a T to G substitution at nucleotide position 1760. The isoleucine at codon 587 is replaced by serine, an amino acid with dissimilar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at