rs75873440
Variant summary
Our verdict is Uncertain significance. The variant received 3 ACMG points: 4P and 1B. PM1PM5BS1_Supporting
The NM_020975.6(RET):c.1597G>A(p.Gly533Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000356 in 1,574,978 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G533A) has been classified as Uncertain significance.
Frequency
Consequence
NM_020975.6 missense
Scores
Clinical Significance
Conservation
Publications
- familial medullary thyroid carcinomaInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P
- multiple endocrine neoplasia type 2AInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen, G2P
- multiple endocrine neoplasia type 2BInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), ClinGen
- pheochromocytomaInheritance: AD Classification: DEFINITIVE Submitted by: G2P
- Hirschsprung disease, susceptibility to, 1Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
- Haddad syndromeInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- Hirschsprung diseaseInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- renal agenesis, unilateralInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- bilateral renal agenesisInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- renal agenesisInheritance: AR Classification: LIMITED Submitted by: G2P
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ACMG classification
Our verdict: Uncertain_significance. The variant received 3 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| RET | NM_020975.6 | c.1597G>A | p.Gly533Ser | missense_variant | Exon 8 of 20 | ENST00000355710.8 | NP_066124.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000854 AC: 13AN: 152238Hom.: 0 Cov.: 34 show subpopulations
GnomAD2 exomes AF: 0.0000437 AC: 8AN: 183154 AF XY: 0.0000409 show subpopulations
GnomAD4 exome AF: 0.0000302 AC: 43AN: 1422622Hom.: 0 Cov.: 32 AF XY: 0.0000256 AC XY: 18AN XY: 703916 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000853 AC: 13AN: 152356Hom.: 0 Cov.: 34 AF XY: 0.000107 AC XY: 8AN XY: 74508 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Multiple endocrine neoplasia type 2A Uncertain:3Benign:1
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This variant is considered likely benign. This variant has been observed at a population frequency that is significantly greater than expected given the associated disease prevalence and penetrance. -
This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -
The RET c.1597G>A (p.Gly533Ser) missense change has a maximum subpopulation frequency of 0.029% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org/). The in silico tool REVEL predicts a deleterious effect on protein function, however functional studies performed on cell lines suggest that this variant does not affect RET function (PMID: 26395553). This variant has been reported in individuals with Hirshsprung disease (PMID: 17009072, 23084198, 26395553), hyperparathyroid disease (PMID: 32761341), and an individual with congenital anomalies of the kidney and urinary tract (PMID: 34979951). Other variant(s) that disrupt the p.Gly533 residue have been determined to be pathogenic (PMID: 14602786, 16649977, 22676047, 23461807). 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:3
This missense variant replaces glycine with serine at codon 533 of the RET protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function. A functional study reported that this variant does not impact RET function in RET and ERK phosphorylation (PMID: 2639553). This variant has been reported in at least one individual affected with paraganglioma or pheochromocytoma (PMID: 22517557). A different missense mutation at this codon, c.1597G>T (p.Gly533Cys), is reported as disease-causing in ClinVar (Variation ID: 13950). This variant has been identified in 8/183154 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 glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 533 of the RET protein (p.Gly533Ser). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This missense change has been observed in individual(s) with Hirschsprung disease (PMID: 22517557, 23084198, 26395553). ClinVar contains an entry for this variant (Variation ID: 24887). 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. Experimental studies have shown that this missense change does not substantially affect RET function (PMID: 26395553). This variant disrupts the p.Gly533 amino acid residue in RET. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 14602786, 16649977, 18805915, 22676047, 23461807). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. 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. -
This missense variant replaces glycine with serine at codon 533 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). Functional studies have shown that this variant does not appear to result in increased RET phosphorylation (PMID: 26395553). To our knowledge, this variant has not been reported in individuals affected with MEN2A syndrome but has been reported in individuals affected with paraganglioma/pheochromocytoma (PMID: 22517557), or Hirschsprung disease (PMID: 17009072, 23084198, 26395553). This variant has been identified in 8/183154 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. -
Hirschsprung disease, susceptibility to, 1 Uncertain:2
This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -
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Multiple endocrine neoplasia type 2B Uncertain:1
This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -
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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Pheochromocytoma Uncertain:1
This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -
Renal hypodysplasia/aplasia 1 Uncertain:1
This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -
not provided Uncertain:1
PP3, PM5 -
Multiple endocrine neoplasia Uncertain:1
This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -
Hereditary cancer-predisposing syndrome Benign:1
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at