rs144911328
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 0P and 0B.
The NM_005732.4(RAD50):c.2563G>T(p.Asp855Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,613,148 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_005732.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 0 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
RAD50 | ENST00000378823.8 | c.2563G>T | p.Asp855Tyr | missense_variant | Exon 16 of 25 | 1 | NM_005732.4 | ENSP00000368100.4 | ||
ENSG00000283782 | ENST00000640655.2 | c.2266G>T | p.Asp756Tyr | missense_variant | Exon 17 of 26 | 5 | ENSP00000491596.2 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152112Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000120 AC: 3AN: 250784Hom.: 0 AF XY: 0.0000148 AC XY: 2AN XY: 135544
GnomAD4 exome AF: 0.0000116 AC: 17AN: 1461036Hom.: 0 Cov.: 31 AF XY: 0.0000138 AC XY: 10AN XY: 726868
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152112Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74306
ClinVar
Submissions by phenotype
not provided Uncertain:2
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Hereditary cancer-predisposing syndrome Uncertain:2
The p.D855Y variant (also known as c.2563G>T), located in coding exon 16 of the RAD50 gene, results from a G to T substitution at nucleotide position 2563. The aspartic acid at codon 855 is replaced by tyrosine, an amino acid with highly dissimilar properties. This alteration was detected in a cohort of 690 patients with myeloid malignancy (Li ST et al. Leukemia, 2020 Jun;34:1675-1678). 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. -
This sequence change replaces aspartic acid, which is acidic and polar, with tyrosine, which is neutral and polar, at codon 855 of the RAD50 protein (p.Asp855Tyr). This variant is present in population databases (rs144911328, gnomAD 0.02%). 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: 141730). 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 expected to disrupt RAD50 protein function with a positive predictive value of 80%. RNA analysis performed to evaluate the impact of this missense change on mRNA splicing indicates it does not significantly alter splicing (internal data). 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