rs750693854
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_005732.4(RAD50):c.790A>G(p.Lys264Glu) variant causes a missense change. The variant allele was found at a frequency of 0.00000868 in 1,613,508 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. K264K) 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: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RAD50 | ENST00000378823.8 | c.790A>G | p.Lys264Glu | missense_variant | Exon 6 of 25 | 1 | NM_005732.4 | ENSP00000368100.4 | ||
ENSG00000283782 | ENST00000638452.2 | c.493A>G | p.Lys165Glu | missense_variant | Exon 8 of 27 | 5 | ENSP00000492349.2 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152260Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00000400 AC: 1AN: 250022 AF XY: 0.00000739 show subpopulations
GnomAD4 exome AF: 0.00000890 AC: 13AN: 1461248Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3AN XY: 726950 show subpopulations
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152260Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74398 show subpopulations
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:2
The p.K264E variant (also known as c.790A>G), located in coding exon 6 of the RAD50 gene, results from an A to G substitution at nucleotide position 790. The lysine at codon 264 is replaced by glutamic acid, an amino acid with similar properties. This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
This sequence change replaces lysine, which is basic and polar, with glutamic acid, which is acidic and polar, at codon 264 of the RAD50 protein (p.Lys264Glu). This variant is present in population databases (rs750693854, gnomAD 0.0009%). 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: 220749). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt RAD50 protein function with a negative predictive value of 80%. 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. -
Nijmegen breakage syndrome-like disorder Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at