rs147196739

Positions:

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_000548.5(TSC2):c.628G>A(p.Ala210Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00019 in 1,613,894 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. A210A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00070 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00014 ( 0 hom. )

Consequence

TSC2
NM_000548.5 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: 2.13

Variant links:

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]

TSC2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.008593231).

BP6

Variant 16-2056224-G-A is Benign according to our data. Variant chr16-2056224-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 184164.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-2056224-G-A is described in Lovd as [Likely_benign]. Variant chr16-2056224-G-A is described in Lovd as [Benign].

BS2

High AC in GnomAd4 at 106 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TSC2	NM_000548.5 linkuse as main transcript	c.628G>A	p.Ala210Thr	missense_variant	7/42	ENST00000219476.9	NP_000539.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TSC2	ENST00000219476.9 linkuse as main transcript	c.628G>A	p.Ala210Thr	missense_variant	7/42	5	NM_000548.5	ENSP00000219476		P49815-1

Frequencies

GnomAD3 genomes

AF:

0.000696

AC:

106

AN:

152218

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00246

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.000958

GnomAD3 exomes

AF:

0.000249

AC:

AN:

248978

Hom.:

AF XY:

0.000178

AC XY:

AN XY:

134818

show subpopulations

Gnomad AFR exome

AF:

0.00271

Gnomad AMR exome

AF:

0.0000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000464

Gnomad NFE exome

AF:

0.0000987

Gnomad OTH exome

AF:

0.000654

GnomAD4 exome

AF:

0.000138

AC:

201

AN:

1461676

Hom.:

Cov.:

AF XY:

0.000111

AC XY:

AN XY:

727138

show subpopulations

Gnomad4 AFR exome

AF:

0.00290

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.0000188

Gnomad4 NFE exome

AF:

0.0000755

Gnomad4 OTH exome

AF:

0.000215

GnomAD4 genome

AF:

0.000696

AC:

106

AN:

152218

Hom.:

Cov.:

AF XY:

0.000766

AC XY:

AN XY:

74374

show subpopulations

Gnomad4 AFR

AF:

0.00246

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.000958

Alfa

AF:

0.000238

Hom.:

Bravo

AF:

0.000691

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00296

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000222

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000178

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:10

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:3

Likely benign, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	Nov 24, 2021	- -
Likely benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Aug 13, 2016	- -
Benign, criteria provided, single submitter	clinical testing	Quest Diagnostics Nichols Institute San Juan Capistrano	Aug 30, 2022	The frequency of this variant in the general population (http://gnomad.broadinstitute.org) is higher than would generally be expected for pathogenic variants in this gene. Computational tools predict this amino acid change may be benign. This variant has been seen where an alternate explanation for disease was also identified. -

Tuberous sclerosis 2

Benign:2

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 28, 2024	- -
Benign, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Nov 07, 2021	- -

not provided

Benign:2

Benign, criteria provided, single submitter	clinical testing	GeneDx	Nov 02, 2018	- -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Jul 01, 2024	TSC2: BP4, BS1 -

Hereditary cancer-predisposing syndrome

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Ambry Genetics	Nov 28, 2018	This alteration is classified as likely 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. -
Benign, criteria provided, single submitter	curation	Sema4, Sema4	Nov 28, 2020	- -

Tuberous sclerosis syndrome

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

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 likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.065

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.28

CADD

Benign

DANN

Benign

0.76

DEOGEN2

Benign

0.32

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

Eigen

Benign

-1.1

Eigen_PC

Benign

-0.99

FATHMM_MKL

Benign

0.35

LIST_S2

Benign

0.85

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

M_CAP

Benign

0.057

MetaRNN

Benign

0.0086

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

MetaSVM

Benign

-0.90

MutationAssessor

Benign

-0.81

N;.;.;.;N;N;.;.;.;N;.;N;.;.;.

MutationTaster

Benign

1.0

N;N;N;N;N;N;N

PrimateAI

Benign

0.26

PROVEAN

Benign

0.90

N;.;.;N;.;N;.;.;N;N;.;.;.;.;N

REVEL

Benign

0.22

Sift

Benign

0.71

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

Sift4G

Benign

1.0

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

Polyphen

0.24

B;.;.;.;B;B;.;.;B;B;.;.;.;.;.

Vest4

0.11

MVP

0.85

ClinPred

0.0030

GERP RS

0.56

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.044

gMVP

0.065

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

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