16-2084303-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000548.5(TSC2):ā€‹c.4081C>Gā€‹(p.Arg1361Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,366 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 34)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

TSC2
NM_000548.5 missense

Scores

2
6
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.995
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.24370342).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TSC2NM_000548.5 linkuse as main transcriptc.4081C>G p.Arg1361Gly missense_variant 34/42 ENST00000219476.9 NP_000539.2 P49815-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TSC2ENST00000219476.9 linkuse as main transcriptc.4081C>G p.Arg1361Gly missense_variant 34/425 NM_000548.5 ENSP00000219476.3 P49815-1

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460366
Hom.:
0
Cov.:
33
AF XY:
0.00000138
AC XY:
1
AN XY:
726446
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
34

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxJul 31, 2020Not observed in large population cohorts (Lek et al., 2016); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.065
BayesDel_addAF
Pathogenic
0.18
D
BayesDel_noAF
Uncertain
0.020
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.50
T;.;.;.;.;.;.;.;.;.;.;.;T;.;T
Eigen
Benign
-0.41
Eigen_PC
Benign
-0.45
FATHMM_MKL
Benign
0.75
D
LIST_S2
Pathogenic
0.98
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
M_CAP
Uncertain
0.18
D
MetaRNN
Benign
0.24
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.29
T
MutationAssessor
Benign
1.5
L;.;.;.;.;.;.;.;.;.;.;.;.;.;.
PrimateAI
Benign
0.40
T
PROVEAN
Benign
-1.8
N;.;.;N;.;N;.;.;N;N;.;.;.;.;N
REVEL
Uncertain
0.57
Sift
Uncertain
0.016
D;.;.;D;.;D;.;.;D;D;.;.;.;.;D
Sift4G
Benign
0.30
T;.;.;T;.;T;.;.;T;T;.;.;.;.;T
Polyphen
0.99
D;.;.;.;P;P;.;.;P;P;.;.;.;.;.
Vest4
0.64
MutPred
0.34
Gain of catalytic residue at V1362 (P = 0.0258);.;.;.;.;.;.;Gain of catalytic residue at V1362 (P = 0.0258);.;.;.;.;.;.;.;
MVP
0.90
ClinPred
0.18
T
GERP RS
1.3
Varity_R
0.12
gMVP
0.33

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: rs560831385; hg19: chr16-2134304; API