rs45437192
Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM1BP6BS2
The NM_000548.5(TSC2):c.4727C>A(p.Thr1576Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000372 in 1,612,572 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T1576M) has been classified as Likely benign.
Frequency
Consequence
NM_000548.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -3 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
TSC2 | NM_000548.5 | c.4727C>A | p.Thr1576Lys | missense_variant | 37/42 | ENST00000219476.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
TSC2 | ENST00000219476.9 | c.4727C>A | p.Thr1576Lys | missense_variant | 37/42 | 5 | NM_000548.5 |
Frequencies
GnomAD3 genomes ? AF: 0.00000658 AC: 1AN: 152044Hom.: 0 Cov.: 34
GnomAD3 exomes AF: 0.00000800 AC: 2AN: 249950Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135656
GnomAD4 exome AF: 0.00000342 AC: 5AN: 1460528Hom.: 0 Cov.: 32 AF XY: 0.00000413 AC XY: 3AN XY: 726560
GnomAD4 genome ? AF: 0.00000658 AC: 1AN: 152044Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0AN XY: 74262
ClinVar
Submissions by phenotype
Tuberous sclerosis syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | All of Us Research Program, National Institutes of Health | Aug 15, 2023 | This missense variant replaces threonine with lysine at codon 1576 of the TSC2 protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 0.7, PMID: 27666373). 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 been identified in 2/249950 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. - |
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Mar 07, 2022 | The p.T1576K variant (also known as c.4727C>A), located in coding exon 36 of the TSC2 gene, results from a C to A substitution at nucleotide position 4727. The threonine at codon 1576 is replaced by lysine, an amino acid with similar properties. This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
Tuberous sclerosis 2 Benign:1
Benign, criteria provided, single submitter | clinical testing | Invitae | Dec 03, 2023 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at