rs397514985

Variant summary

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

The NM_000548.5(TSC2):​c.3022G>A​(p.Val1008Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000192 in 1,612,978 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

TSC2
NM_000548.5 missense

Scores

1
18

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3O:1

Conservation

PhyloP100: 1.05
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]

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=0.058503985).
BP6
Variant 16-2079087-G-A is Benign according to our data. Variant chr16-2079087-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 64980.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-2079087-G-A is described in Lovd as [Benign].
BS2
High AC in GnomAdExome4 at 30 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TSC2NM_000548.5 linkc.3022G>A p.Val1008Met missense_variant Exon 27 of 42 ENST00000219476.9 NP_000539.2 P49815-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TSC2ENST00000219476.9 linkc.3022G>A p.Val1008Met missense_variant Exon 27 of 42 5 NM_000548.5 ENSP00000219476.3 P49815-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152148
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000200
AC:
5
AN:
250530
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135762
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000980
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000205
AC:
30
AN:
1460712
Hom.:
0
Cov.:
31
AF XY:
0.0000303
AC XY:
22
AN XY:
726662
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000580
Gnomad4 FIN exome
AF:
0.0000191
Gnomad4 NFE exome
AF:
0.0000198
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152266
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74450
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Tuberous sclerosis 2 Benign:2
Dec 31, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Aug 14, 2024
Myriad Genetics, Inc.
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign. This variant has been observed at a population frequency that is significantly greater than expected given the associated disease prevalence and penetrance. -

Hereditary cancer-predisposing syndrome Benign:1
Nov 11, 2019
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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. -

Tuberous sclerosis syndrome Other:1
-
Tuberous sclerosis database (TSC2)
Significance: not provided
Review Status: no classification provided
Collection Method: curation

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.063
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Benign
-0.19
CADD
Benign
0.17
DANN
Benign
0.89
DEOGEN2
Benign
0.33
T;.;.;.;.;.;.;.;.;.;.;.;T;.;T
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.14
N
LIST_S2
Benign
0.78
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
M_CAP
Benign
0.053
D
MetaRNN
Benign
0.059
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.79
T
MutationAssessor
Benign
0.69
N;.;.;.;.;.;.;.;.;N;.;.;.;.;.
PrimateAI
Benign
0.32
T
PROVEAN
Benign
0.41
N;.;.;N;.;N;.;.;N;N;.;.;.;.;N
REVEL
Uncertain
0.41
Sift
Benign
0.67
T;.;.;T;.;T;.;.;T;T;.;.;.;.;T
Sift4G
Benign
0.57
T;.;.;T;.;T;.;.;T;T;.;.;.;.;T
Polyphen
0.0030
B;.;.;.;B;B;.;.;B;B;.;.;.;.;.
Vest4
0.33
MutPred
0.24
Gain of helix (P = 0.0325);.;Gain of helix (P = 0.0325);.;.;.;.;Gain of helix (P = 0.0325);.;Gain of helix (P = 0.0325);.;.;.;.;.;
MVP
0.74
ClinPred
0.0098
T
GERP RS
-1.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.017
gMVP
0.48

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.

Other links and lift over

dbSNP: rs397514985; hg19: chr16-2129088; COSMIC: COSV54765572; COSMIC: COSV54765572; API