16-2054358-C-A
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_000548.5(TSC2):c.399C>A(p.Asn133Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,614,072 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N133T) has been classified as Benign.
Frequency
Consequence
NM_000548.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 0 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
TSC2 | NM_000548.5 | c.399C>A | p.Asn133Lys | missense_variant | 5/42 | ENST00000219476.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
TSC2 | ENST00000219476.9 | c.399C>A | p.Asn133Lys | missense_variant | 5/42 | 5 | NM_000548.5 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152192Hom.: 0 Cov.: 33
GnomAD4 exome AF: 0.00000137 AC: 2AN: 1461880Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2AN XY: 727242
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152192Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74354
ClinVar
Submissions by phenotype
Tuberous sclerosis 2 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Apr 24, 2022 | ClinVar contains an entry for this variant (Variation ID: 845277). 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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt TSC2 protein function. This variant has not been reported in the literature in individuals affected with TSC2-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces asparagine, which is neutral and polar, with lysine, which is basic and polar, at codon 133 of the TSC2 protein (p.Asn133Lys). - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at