chr16-2079663-A-C

Variant summary

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

The NM_000548.5(TSC2):ā€‹c.3391A>Cā€‹(p.Met1131Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000000695 in 1,438,176 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin Lovd.

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 7.0e-7 ( 0 hom. )

Consequence

TSC2
NM_000548.5 missense

Scores

7
12

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.50
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=0.2107406).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TSC2NM_000548.5 linkuse as main transcriptc.3391A>C p.Met1131Leu missense_variant 29/42 ENST00000219476.9 NP_000539.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TSC2ENST00000219476.9 linkuse as main transcriptc.3391A>C p.Met1131Leu missense_variant 29/425 NM_000548.5 ENSP00000219476 P49815-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000484
AC:
1
AN:
206530
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
111810
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000638
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.95e-7
AC:
1
AN:
1438176
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
713394
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000258
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000839
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.0038
T
BayesDel_noAF
Uncertain
-0.060
CADD
Uncertain
24
DANN
Benign
0.30
DEOGEN2
Uncertain
0.46
T;.;.;.;.;.;.;.;.;.;.;.;T;.;T
Eigen
Benign
0.017
Eigen_PC
Benign
0.088
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.82
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
M_CAP
Uncertain
0.096
D
MetaRNN
Benign
0.21
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Uncertain
0.59
D
MutationAssessor
Benign
1.7
L;.;.;.;.;.;.;.;.;L;.;.;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Uncertain
0.67
T
PROVEAN
Benign
-1.4
N;.;.;N;.;N;.;.;N;N;.;.;.;.;N
REVEL
Uncertain
0.51
Sift
Benign
0.12
T;.;.;T;.;T;.;.;T;T;.;.;.;.;T
Sift4G
Benign
0.41
T;.;.;T;.;T;.;.;T;T;.;.;.;.;T
Polyphen
0.34
B;.;.;.;B;P;.;.;B;B;.;.;.;.;.
Vest4
0.43
MutPred
0.23
Loss of MoRF binding (P = 0.1123);.;Loss of MoRF binding (P = 0.1123);.;.;.;.;Loss of MoRF binding (P = 0.1123);.;Loss of MoRF binding (P = 0.1123);.;.;.;.;.;
MVP
0.85
ClinPred
0.099
T
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Varity_R
0.24
gMVP
0.23

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs775639244; hg19: chr16-2129664; API