rs118203657

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_000368.5(TSC1):c.2194C>T(p.His732Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0036 in 1,612,416 control chromosomes in the GnomAD database, including 28 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0033 ( 4 hom., cov: 32)

Exomes 𝑓: 0.0036 ( 24 hom. )

Consequence

TSC1
NM_000368.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:27O:2

Conservation

PhyloP100: 8.07

Variant links:

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]

TSC1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.00885722).

BP6

Variant 9-132903665-G-A is Benign according to our data. Variant chr9-132903665-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 5103.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=2, Benign=18, Likely_benign=3, not_provided=2}. Variant chr9-132903665-G-A is described in Lovd as [Likely_benign]. Variant chr9-132903665-G-A is described in Lovd as [Benign].

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00326 (497/152322) while in subpopulation NFE AF= 0.00463 (315/68032). AF 95% confidence interval is 0.00421. There are 4 homozygotes in gnomad4. There are 266 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 497 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TSC1	NM_000368.5 link	c.2194C>T	p.His732Tyr	missense_variant	Exon 17 of 23	ENST00000298552.9	NP_000359.1	Q92574-1Q86WV8X5D9D2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TSC1	ENST00000298552.9 link	c.2194C>T	p.His732Tyr	missense_variant	Exon 17 of 23	1	NM_000368.5	ENSP00000298552.3		Q92574-1
TSC1	ENST00000490179.4 link	c.2194C>T	p.His732Tyr	missense_variant	Exon 18 of 24	3		ENSP00000495533.2		A0A2R8Y6S8

Frequencies

GnomAD3 genomes

AF:

0.00327

AC:

497

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000603

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0138

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00463

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.00364

AC:

914

AN:

251112

Hom.:

AF XY:

0.00357

AC XY:

484

AN XY:

135700

show subpopulations

Gnomad AFR exome

AF:

0.000984

Gnomad AMR exome

AF:

0.00121

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0138

Gnomad NFE exome

AF:

0.00474

Gnomad OTH exome

AF:

0.00327

GnomAD4 exome

AF:

0.00364

AC:

5309

AN:

1460094

Hom.:

Cov.:

AF XY:

0.00348

AC XY:

2527

AN XY:

726338

show subpopulations

Gnomad4 AFR exome

AF:

0.000449

Gnomad4 AMR exome

AF:

0.00125

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.0140

Gnomad4 NFE exome

AF:

0.00387

Gnomad4 OTH exome

AF:

0.00302

GnomAD4 genome

AF:

0.00326

AC:

497

AN:

152322

Hom.:

Cov.:

AF XY:

0.00357

AC XY:

266

AN XY:

74480

show subpopulations

Gnomad4 AFR

AF:

0.000601

Gnomad4 AMR

AF:

0.000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0138

Gnomad4 NFE

AF:

0.00463

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.00361

Hom.:

Bravo

AF:

0.00213

TwinsUK

AF:

0.00324

AC:

ALSPAC

AF:

0.00389

AC:

ESP6500AA

AF:

0.000908

AC:

ESP6500EA

AF:

0.00360

AC:

ExAC

AF:

0.00386

AC:

469

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00333

EpiControl

AF:

0.00314

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:27Other:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Benign:9Other:1

Jan 02, 2014

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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. -

Mar 17, 2014

Genetic Services Laboratory, University of Chicago

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Sep 19, 2013

ITMI

Significance: not provided

Review Status: no classification provided

Collection Method: reference population

- -

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Apr 25, 2016

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant identified in a genome or exome case(s) and assessed due to predicted null impact of the variant or pathogenic assertions in the literature or databases. Disclaimer: This variant has not undergone full assessment. The following are preliminary notes: ExAC: 1.5% (96/6614) Finnish chromosomes -

Genome Diagnostics Laboratory, Amsterdam University Medical Center

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Jan 24, 2025

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Oct 09, 2014

Eurofins Ntd Llc (ga)

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

not provided

Benign:8

Dec 01, 2017

Athena Diagnostics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Clinical Genetics, Academic Medical Center

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Jul 13, 2012

Biesecker Lab/Clinical Genomics Section, National Institutes of Health

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: research

- -

Oct 14, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jan 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

TSC1: PP2, BS2 -

Jun 22, 2022

Quest Diagnostics Nichols Institute San Juan Capistrano

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

May 03, 2016

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Tuberous sclerosis 1

Benign:7

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Feb 04, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Sep 17, 2015

Genomic Diagnostic Laboratory, Division of Genomic Diagnostics, Children's Hospital of Philadelphia

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Nov 21, 2018

Equipe Genetique des Anomalies du Developpement, Université de Bourgogne

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Nov 07, 2021

Genome-Nilou Lab

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jul 06, 2023

Myriad Genetics, Inc.

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered benign. This variant has been observed at a population frequency that is significantly greater than expected given the associated disease prevalence and penetrance. Homozygosity has been confirmed in one or more individuals. As homozygosity for pathogenic variants in this gene is generally assumed to result in embryonic lethality, this variant is unlikely to be pathogenic. -

Sep 20, 2022

Color Diagnostics, LLC DBA Color Health

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Isolated focal cortical dysplasia type II

Uncertain:1Benign:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Sep 01, 2017

Lupski Lab, Baylor-Hopkins CMG, Baylor College of Medicine

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: research

this variant was indentified in an individual with malformations of cortical development -

Hereditary cancer-predisposing syndrome

Benign:2

Oct 21, 2020

Sema4, Sema4

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: curation

- -

Nov 20, 2014

Ambry Genetics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Focal cortical dysplasia of Taylor type 2B

Uncertain:1

Jun 01, 2009

OMIM

Significance: Uncertain significance

Review Status: flagged submission

Collection Method: literature only

- -

Tuberous sclerosis syndrome

Other:1

Tuberous sclerosis database (TSC1)

Significance: not provided

Review Status: no classification provided

Collection Method: curation

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.18

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Uncertain

-0.060

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.72

D;.;D;.;.;D;.;D;.;.;.

Eigen

Uncertain

0.58

Eigen_PC

Uncertain

0.63

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Benign

0.81

.;T;T;T;T;.;.;.;T;T;.

MetaRNN

Benign

0.0089

T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Uncertain

-0.014

MutationAssessor

Benign

1.6

L;.;L;.;.;L;.;L;.;.;.

PrimateAI

Uncertain

0.53

PROVEAN

Uncertain

-2.9

D;D;D;.;.;.;.;.;.;.;.

REVEL

Uncertain

0.34

Sift

Uncertain

0.0080

D;D;D;.;.;.;.;.;.;.;.

Sift4G

Uncertain

0.037

D;D;D;.;.;.;.;.;.;.;.

Polyphen

0.99

D;.;D;.;.;D;.;D;.;.;.

Vest4

0.44

MVP

0.56

MPC

0.58

ClinPred

0.045

GERP RS

5.3

Varity_R

0.29

gMVP

0.64

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.090

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over