rs748938385

Variant summary

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

The NM_000548.5(TSC2):​c.1643G>A​(p.Arg548Lys) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R548G) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

TSC2
NM_000548.5 missense

Scores

8
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.62
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 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=0.23202583).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TSC2NM_000548.5 linkuse as main transcriptc.1643G>A p.Arg548Lys missense_variant 16/42 ENST00000219476.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TSC2ENST00000219476.9 linkuse as main transcriptc.1643G>A p.Arg548Lys missense_variant 16/425 NM_000548.5 P49815-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250574
Hom.:
0
AF XY:
0.00000738
AC XY:
1
AN XY:
135528
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
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
Data not reliable, filtered out with message: AS_VQSR
AF:
6.84e-7
AC:
1
AN:
1461566
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
727064
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
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.:
32
ExAC
AF:
0.00000824
AC:
1

ClinVar

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

Submissions by phenotype

Tuberous sclerosis syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAll of Us Research Program, National Institutes of HealthMay 31, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.096
BayesDel_addAF
Uncertain
0.060
T
BayesDel_noAF
Uncertain
0.020
CADD
Uncertain
24
DANN
Benign
0.91
DEOGEN2
Benign
0.38
T;.;.;.;.;.;.;.;.;.;.;.;T;.;T
Eigen
Benign
-0.0093
Eigen_PC
Benign
-0.0023
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.94
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
M_CAP
Uncertain
0.096
D
MetaRNN
Benign
0.23
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Uncertain
0.21
D
MutationAssessor
Benign
0.90
L;.;.;.;L;L;.;.;.;L;.;L;.;.;.
MutationTaster
Benign
0.97
D;D;D;D;D;D;D
PrimateAI
Uncertain
0.56
T
PROVEAN
Benign
-0.83
N;.;.;N;.;N;.;.;N;N;.;.;.;.;N
REVEL
Uncertain
0.48
Sift
Benign
0.32
T;.;.;T;.;T;.;.;T;T;.;.;.;.;T
Sift4G
Benign
0.23
T;.;.;T;.;T;.;.;T;T;.;.;.;.;T
Polyphen
0.93
P;.;.;.;D;B;.;.;D;B;.;.;.;.;.
Vest4
0.59
MutPred
0.34
Gain of ubiquitination at R548 (P = 0.0075);Gain of ubiquitination at R548 (P = 0.0075);Gain of ubiquitination at R548 (P = 0.0075);.;Gain of ubiquitination at R548 (P = 0.0075);Gain of ubiquitination at R548 (P = 0.0075);Gain of ubiquitination at R548 (P = 0.0075);Gain of ubiquitination at R548 (P = 0.0075);.;Gain of ubiquitination at R548 (P = 0.0075);Gain of ubiquitination at R548 (P = 0.0075);Gain of ubiquitination at R548 (P = 0.0075);Gain of ubiquitination at R548 (P = 0.0075);Gain of ubiquitination at R548 (P = 0.0075);.;
MVP
0.85
ClinPred
0.25
T
GERP RS
5.6
Varity_R
0.25
gMVP
0.22

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: rs748938385; hg19: chr16-2115563; API