rs587781740
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_005732.4(RAD50):c.3076A>C(p.Lys1026Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000162 in 1,603,372 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 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. K1026E) has been classified as Uncertain significance.
Frequency
Consequence
NM_005732.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -2 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RAD50 | ENST00000378823.8 | c.3076A>C | p.Lys1026Gln | missense_variant | Exon 20 of 25 | 1 | NM_005732.4 | ENSP00000368100.4 | ||
ENSG00000283782 | ENST00000640655.2 | c.2779A>C | p.Lys927Gln | missense_variant | Exon 21 of 26 | 5 | ENSP00000491596.2 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152238Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000797 AC: 2AN: 251064Hom.: 0 AF XY: 0.00000737 AC XY: 1AN XY: 135716
GnomAD4 exome AF: 0.0000165 AC: 24AN: 1451134Hom.: 0 Cov.: 30 AF XY: 0.0000166 AC XY: 12AN XY: 722636
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152238Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74382
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:2
This sequence change replaces lysine, which is basic and polar, with glutamine, which is neutral and polar, at codon 1026 of the RAD50 protein (p.Lys1026Gln). This variant is present in population databases (rs587781740, gnomAD 0.002%). 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: 141431). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) 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. -
The p.K1026Q variant (also known as c.3076A>C), located in coding exon 20 of the RAD50 gene, results from an A to C substitution at nucleotide position 3076. The lysine at codon 1026 is replaced by glutamine, an amino acid with similar properties. This amino acid position is highly 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at