rs79014735
Variant summary
Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS1
The NM_020975.6(RET):c.406G>A(p.Glu136Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000341 in 1,614,238 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_020975.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -7 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
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RET | NM_020975.6 | c.406G>A | p.Glu136Lys | missense_variant | Exon 3 of 20 | ENST00000355710.8 | NP_066124.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000394 AC: 6AN: 152238Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000875 AC: 22AN: 251406Hom.: 0 AF XY: 0.0000957 AC XY: 13AN XY: 135890
GnomAD4 exome AF: 0.0000335 AC: 49AN: 1461882Hom.: 0 Cov.: 32 AF XY: 0.0000371 AC XY: 27AN XY: 727240
GnomAD4 genome AF: 0.0000394 AC: 6AN: 152356Hom.: 0 Cov.: 33 AF XY: 0.0000671 AC XY: 5AN XY: 74502
ClinVar
Submissions by phenotype
Multiple endocrine neoplasia, type 2 Uncertain:2
This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 136 of the RET protein (p.Glu136Lys). This variant is present in population databases (rs79014735, gnomAD 0.03%). 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: 216727). 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 tolerated. 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 glutamic acid with lysine at codon 136 of the RET protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, 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, but was identified in a healthy control individual (PMID: 29641532). This variant has been identified in 22/251406 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. -
not provided Uncertain:2
In silico analysis supports that this missense variant does not alter protein structure/function; Observed in at least one individual with breast cancer, as well as in unaffected controls from a melanoma study (Pritchard et al., 2018; Yehia et al., 2018); This variant is associated with the following publications: (PMID: 14633923, 29684080, BhatiS2016[article], 29641532) -
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not specified Uncertain:1
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Multiple endocrine neoplasia type 2A Uncertain:1
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Hirschsprung disease, susceptibility to, 1 Uncertain:1
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RET-related disorder Uncertain:1
The RET c.406G>A variant is predicted to result in the amino acid substitution p.Glu136Lys. This variant has been reported in a breast cancer specimen from the The Cancer Genome Atlas (TGCA; Table S9, Yehia et al. 2018. PubMed ID: 29684080). This variants has been reported in a control individual from a cutaneous melanoma cohort study (Supplement, Pritchard et al. 2018. PubMed ID: 29641532). This variant is reported in 0.032% of alleles in individuals of Latino descent in gnomAD. It is interpreted as uncertain significance by the vast majority of submitters in ClinVar (https://www.ncbi.nlm.nih.gov/clinvar/variation/216727/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Multiple endocrine neoplasia type 2A;C0025269:Multiple endocrine neoplasia type 2B;C0031511:Pheochromocytoma;C1833921:Familial medullary thyroid carcinoma;C3888239:Hirschsprung disease, susceptibility to, 1 Benign:1
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Ovarian cancer Benign:1
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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