rs186681035
Positions:
Variant summary
Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2
The NM_000548.5(TSC2):c.2097+43A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.011 in 1,537,292 control chromosomes in the GnomAD database, including 112 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.0089 ( 8 hom., cov: 33)
Exomes 𝑓: 0.011 ( 104 hom. )
Consequence
TSC2
NM_000548.5 intron
NM_000548.5 intron
Scores
2
Clinical Significance
Conservation
PhyloP100: 0.285
Genes affected
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]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -20 ACMG points.
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BP6
?
Variant 16-2071977-A-G is Benign according to our data. Variant chr16-2071977-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 64899.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-2071977-A-G is described in Lovd as [Likely_benign]. Variant chr16-2071977-A-G is described in Lovd as [Benign].
BS1
?
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00886 (1350/152340) while in subpopulation NFE AF= 0.013 (884/68024). AF 95% confidence interval is 0.0123. There are 8 homozygotes in gnomad4. There are 658 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
?
High AC in GnomAd4 at 1350 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
TSC2 | NM_000548.5 | c.2097+43A>G | intron_variant | ENST00000219476.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
TSC2 | ENST00000219476.9 | c.2097+43A>G | intron_variant | 5 | NM_000548.5 |
Frequencies
GnomAD3 genomes ? AF: 0.00886 AC: 1349AN: 152222Hom.: 8 Cov.: 33
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GnomAD3 exomes AF: 0.00915 AC: 1347AN: 147266Hom.: 11 AF XY: 0.00916 AC XY: 731AN XY: 79764
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GnomAD4 exome AF: 0.0112 AC: 15526AN: 1384952Hom.: 104 Cov.: 33 AF XY: 0.0109 AC XY: 7459AN XY: 681390
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GnomAD4 genome ? AF: 0.00886 AC: 1350AN: 152340Hom.: 8 Cov.: 33 AF XY: 0.00883 AC XY: 658AN XY: 74486
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ClinVar
Significance: Benign/Likely benign
Submissions summary: Benign:2Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not specified Benign:1
Benign, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | - | - - |
not provided Benign:1
Likely benign, criteria provided, single submitter | clinical testing | GeneDx | Jun 19, 2018 | This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. - |
Tuberous sclerosis syndrome Other:1
not provided, no classification provided | curation | Tuberous sclerosis database (TSC2) | - | - - |
Computational scores
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at