ClinVar Miner

Submissions for variant NM_000548.5(TSC2):c.251C>A (p.Ala84Glu)

dbSNP: rs35660529
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001977371 SCV002267401 uncertain significance Tuberous sclerosis 2 2024-10-29 criteria provided, single submitter clinical testing This sequence change replaces alanine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 84 of the TSC2 protein (p.Ala84Glu). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with TSC2-related conditions. ClinVar contains an entry for this variant (Variation ID: 1473079). 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 not expected to disrupt TSC2 protein function with a negative predictive value of 95%. 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.
All of Us Research Program, National Institutes of Health RCV004804330 SCV005427019 uncertain significance Tuberous sclerosis syndrome 2024-07-20 criteria provided, single submitter clinical testing This missense variant replaces alanine with glutamic acid at codon 84 of the TSC2 protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function. To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with TSC2-related disorders in the literature. This variant has not been identified 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.

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