16-2086788-G-C
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PM2
The NM_000548.5(TSC2):āc.4906G>Cā(p.Asp1636His) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,459,144 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā ). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D1636N) 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 4 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
TSC2 | NM_000548.5 | c.4906G>C | p.Asp1636His | missense_variant | 38/42 | ENST00000219476.9 | NP_000539.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
TSC2 | ENST00000219476.9 | c.4906G>C | p.Asp1636His | missense_variant | 38/42 | 5 | NM_000548.5 | ENSP00000219476 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD4 exome AF: 6.85e-7 AC: 1AN: 1459144Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1AN XY: 725874
GnomAD4 genome Cov.: 33
ClinVar
Submissions by phenotype
Tuberous sclerosis 2 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Sep 27, 2023 | This sequence change replaces aspartic acid, which is acidic and polar, with histidine, which is basic and polar, at codon 1636 of the TSC2 protein (p.Asp1636His). 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. 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. 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. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.