rs118203707
Variant summary
Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong
The NM_000368.5(TSC1):c.2509_2512del(p.Asn837ValfsTer11) variant causes a frameshift change involving the alteration of a conserved nucleotide. Variant has been reported in ClinVar as Pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. N837N) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: not found (cov: 32)
Consequence
TSC1
NM_000368.5 frameshift
NM_000368.5 frameshift
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 7.76
Genes affected
TSC1 (HGNC:12362): (TSC complex subunit 1) This gene is a tumor suppressor gene that encodes the growth inhibitory protein hamartin. The encoded protein interacts with and stabilizes the GTPase activating protein tuberin. This hamartin-tuberin complex negatively regulates mammalian target of rapamycin complex 1 (mTORC1) signaling which is a major regulator of anabolic cell growth. This protein also functions as a co-chaperone for Hsp90 that inhibits its ATPase activity. This protein functions as a facilitator of Hsp90-mediated folding of kinase and non-kinase clients, including TSC2 and thereby preventing their ubiquitination and proteasomal degradation. 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 Pathogenic. Variant got 16 ACMG points.
PVS1
?
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PP5
?
Variant 9-132900827-CTGTT-C is Pathogenic according to our data. Variant chr9-132900827-CTGTT-C is described in ClinVar as [Pathogenic]. Clinvar id is 48971.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr9-132900827-CTGTT-C is described in Lovd as [Pathogenic]. Variant chr9-132900827-CTGTT-C is described in Lovd as [Pathogenic]. Variant chr9-132900827-CTGTT-C is described in Lovd as [Pathogenic].
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
TSC1 | NM_000368.5 | c.2509_2512del | p.Asn837ValfsTer11 | frameshift_variant | 20/23 | ENST00000298552.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
TSC1 | ENST00000298552.9 | c.2509_2512del | p.Asn837ValfsTer11 | frameshift_variant | 20/23 | 1 | NM_000368.5 | P4 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
We have no GnomAD4 exomes data on this position. Probably position not covered by the project.
GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:10Other:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Tuberous sclerosis 1 Pathogenic:5
Pathogenic, criteria provided, single submitter | clinical testing | Genome-Nilou Lab | Nov 07, 2021 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Dec 19, 2023 | This sequence change creates a premature translational stop signal (p.Asn837Valfs*11) in the TSC1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in TSC1 are known to be pathogenic (PMID: 10227394, 17304050). This variant is not present in population databases (gnomAD no frequency). This premature translational stop signal has been observed in individual(s) with tuberous sclerosis (PMID: 9924605, 29286531). This variant is also known as c.2729_2732delAAAC and c.2506_2509del. ClinVar contains an entry for this variant (Variation ID: 48971). For these reasons, this variant has been classified as Pathogenic. - |
Pathogenic, criteria provided, single submitter | clinical testing | Myriad Genetics, Inc. | Jan 10, 2023 | This variant is considered pathogenic. This variant creates a frameshift predicted to result in premature protein truncation. - |
Pathogenic, no assertion criteria provided | clinical testing | Division of Genomic Medicine, Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University | Jun 09, 2020 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Athena Diagnostics | Jul 30, 2014 | - - |
not provided Pathogenic:3
Pathogenic, no assertion criteria provided | clinical testing | Genome Diagnostics Laboratory, Amsterdam University Medical Center | - | - - |
Pathogenic, no assertion criteria provided | clinical testing | Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center | - | - - |
Pathogenic, criteria provided, single submitter | clinical testing | GeneDx | Jan 30, 2023 | Frameshift variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss of function is a known mechanism of disease; Not observed at significant frequency in large population cohorts (gnomAD); This variant is associated with the following publications: (PMID: 14756965, 18032745, 15798777, 9924605, 17304050, 10227394, 10363127, 11112665, 31598950, 12015165, 29286531, 32211034) - |
Tuberous sclerosis syndrome Other:2
not provided, no classification provided | curation | Tuberous sclerosis database (TSC1) | - | - - |
not provided, no classification provided | curation | Tuberous sclerosis database (TSC1) | - | - - |
Seizure;C0431718:Multiple renal cysts;C1968959:Cortical tubers Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Centre for Mendelian Genomics, University Medical Centre Ljubljana | Mar 27, 2014 | - - |
Lymphangiomyomatosis Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Centre for Mendelian Genomics, University Medical Centre Ljubljana | Jan 01, 2016 | This variant was classified as: Pathogenic. - |
Computational scores
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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