rs144801580
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate
The NM_020975.6(RET):c.548G>A(p.Gly183Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,614,032 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 Uncertain significance (★★).
Frequency
Consequence
NM_020975.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 4 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
RET | NM_020975.6 | c.548G>A | p.Gly183Asp | missense_variant | Exon 3 of 20 | ENST00000355710.8 | NP_066124.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152166Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251358Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135874
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461866Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1AN XY: 727238
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152166Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74328
ClinVar
Submissions by phenotype
Multiple endocrine neoplasia type 2A;C0025269:Multiple endocrine neoplasia type 2B;C0031511:Pheochromocytoma;C1833921:Familial medullary thyroid carcinoma;C3888239:Hirschsprung disease, susceptibility to, 1 Uncertain:1
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Hirschsprung disease, susceptibility to, 1 Uncertain:1
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Multiple endocrine neoplasia type 2A Uncertain:1
The RET c.548G>A p.(Gly183Asp) missense change has a maximum subpopulation frequency of 0.0062% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org/). The in silico tool REVEL predicts a deleterious effect on protein function, but to our knowledge this prediction has not been confirmed by functional studies. To our knowledge, this variant has not been reported in the literature in individuals with multiple endocrine neoplasia type 2. In summary, the evidence currently available is insufficient to determine the clinical significance of this variant. It has therefore been classified as of uncertain significance. -
Multiple endocrine neoplasia, type 2 Uncertain:1
This sequence change replaces glycine, which is neutral and non-polar, with aspartic acid, which is acidic and polar, at codon 183 of the RET protein (p.Gly183Asp). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with breast cancer (PMID: 35534704). ClinVar contains an entry for this variant (Variation ID: 188067). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.G183D variant (also known as c.548G>A), located in coding exon 3 of the RET gene, results from a G to A substitution at nucleotide position 548. The glycine at codon 183 is replaced by aspartic acid, 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 deleterious 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