16-2070546-A-G

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 2P and 8B. PM2BP4_ModerateBP6_ModerateBS2

The NM_000548.5(TSC2):ā€‹c.1807A>Gā€‹(p.Thr603Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,460,826 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000034 ( 0 hom. )

Consequence

TSC2
NM_000548.5 missense

Scores

4
15

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.56
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 Likely_benign. Variant got -6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.173273).
BP6
Variant 16-2070546-A-G is Benign according to our data. Variant chr16-2070546-A-G is described in ClinVar as [Benign]. Clinvar id is 467897.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TSC2NM_000548.5 linkuse as main transcriptc.1807A>G p.Thr603Ala missense_variant 17/42 ENST00000219476.9 NP_000539.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TSC2ENST00000219476.9 linkuse as main transcriptc.1807A>G p.Thr603Ala missense_variant 17/425 NM_000548.5 ENSP00000219476 P49815-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000799
AC:
2
AN:
250314
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135730
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:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1460826
Hom.:
0
Cov.:
34
AF XY:
0.00000413
AC XY:
3
AN XY:
726706
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Tuberous sclerosis 2 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 06, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.063
BayesDel_addAF
Uncertain
0.028
T
BayesDel_noAF
Benign
-0.20
CADD
Benign
12
DANN
Benign
0.83
DEOGEN2
Uncertain
0.49
T;.;.;.;.;.;.;.;.;.;.;.;T;.;T
Eigen
Benign
-0.65
Eigen_PC
Benign
-0.50
FATHMM_MKL
Uncertain
0.79
D
LIST_S2
Benign
0.76
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
M_CAP
Benign
0.026
D
MetaRNN
Benign
0.17
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.89
T
MutationAssessor
Benign
0.0
N;.;.;.;N;N;.;.;.;N;.;N;.;.;.
MutationTaster
Benign
1.0
N;N;N;N;N;N;N
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-1.2
N;.;.;N;.;N;.;.;N;N;.;.;.;.;N
REVEL
Uncertain
0.36
Sift
Benign
0.50
T;.;.;T;.;T;.;.;T;T;.;.;.;.;T
Sift4G
Benign
0.24
T;.;.;T;.;T;.;.;T;T;.;.;.;.;T
Polyphen
0.023
B;.;.;.;B;B;.;.;B;B;.;.;.;.;.
Vest4
0.37
MutPred
0.51
Gain of helix (P = 0.062);Gain of helix (P = 0.062);Gain of helix (P = 0.062);.;Gain of helix (P = 0.062);Gain of helix (P = 0.062);Gain of helix (P = 0.062);Gain of helix (P = 0.062);.;Gain of helix (P = 0.062);Gain of helix (P = 0.062);Gain of helix (P = 0.062);Gain of helix (P = 0.062);Gain of helix (P = 0.062);.;
MVP
0.80
ClinPred
0.024
T
GERP RS
1.8
Varity_R
0.036
gMVP
0.20

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: rs876660140; hg19: chr16-2120547; API