Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4BP6BS2
The NM_000548.5(TSC2):c.3329C>G(p.Ala1110Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000011 in 1,459,204 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
TSC2 (HGNC:12363): (TSC complex subunit 2) This gene is a tumor suppressor gene that encodes the growth inhibitory protein tuberin. Tuberin interacts with hamartin to form the TSC protein complex which functions in the control of cell growth. This TSC protein complex negatively regulates mammalian target of rapamycin complex 1 (mTORC1) signaling which is a major regulator of anabolic cell growth. Mutations in this gene have been associated with tuberous sclerosis and lymphangioleiomyomatosis. [provided by RefSeq, May 2022]
Verdict is Likely_benign. Variant got -6 ACMG points.
BP4
Computational evidence support a benign effect (MetaRNN=0.39606845).
BP6
Variant 16-2079601-C-G is Benign according to our data. Variant chr16-2079601-C-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 405981.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Benign=1, Uncertain_significance=3}.
Review Status: criteria provided, single submitter
Collection Method: clinical testing
The p.A1110G variant (also known as c.3329C>G), located in coding exon 28 of the TSC2 gene, results from a C to G substitution at nucleotide position 3329. The alanine at codon 1110 is replaced by glycine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
not provided Benign:1
Aug 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter