rs201101792
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PP3_Moderate
The NM_020975.6(RET):c.2543T>A(p.Met848Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,613,392 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
Genome browser will be placed here
ACMG classification
Verdict is Uncertain_significance. Variant got 2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
RET | NM_020975.6 | c.2543T>A | p.Met848Lys | missense_variant | Exon 14 of 20 | ENST00000355710.8 | NP_066124.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152186Hom.: 0 Cov.: 34
GnomAD3 exomes AF: 0.0000159 AC: 4AN: 250856Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135806
GnomAD4 exome AF: 0.00000479 AC: 7AN: 1461206Hom.: 0 Cov.: 33 AF XY: 0.00000275 AC XY: 2AN XY: 726926
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152186Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0AN XY: 74350
ClinVar
Submissions by phenotype
Multiple endocrine neoplasia type 2A Uncertain:2
This variant is classified as a variant of uncertain significance as there is insufficient evidence to determine its impact on protein function and/or cancer risk. -
- -
Multiple endocrine neoplasia, type 2 Uncertain:2
This missense variant replaces methionine with lysine at codon 848 of the RET protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function (internally defined REVEL score threshold >= 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with RET-related disorders in the literature. This variant has been identified in 4/250856 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
This sequence change replaces methionine, which is neutral and non-polar, with lysine, which is basic and polar, at codon 848 of the RET protein (p.Met848Lys). This variant is present in population databases (rs201101792, gnomAD 0.04%). This variant has not been reported in the literature in individuals affected with RET-related conditions. ClinVar contains an entry for this variant (Variation ID: 41841). 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. -
not provided Uncertain:2
- -
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 14633923, 36845387, 22703879) -
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
- -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.M848K variant (also known as c.2543T>A), located in coding exon 14 of the RET gene, results from a T to A substitution at nucleotide position 2543. The methionine at codon 848 is replaced by lysine, an amino acid with similar properties. This variant was detected as a secondary finding in1 out of 572 ClinSeq participants, unselected for personal or family history of cancer, who underwent exome sequencing; however, the clinical information for this particular individual was not provided (Johnston JJ et al. Am J Hum Genet, 2012 Jul;91:97-108). This amino acid position is well 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