rs45517420

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM2PM5BP6_Moderate

The NM_000548.5(TSC2):​c.5365G>A​(p.Glu1789Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000206 in 1,459,370 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E1789D) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

TSC2
NM_000548.5 missense

Scores

3
10
6

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 7.71
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 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr16-2088551-G-C is described in Lovd as [Pathogenic].
BP6
Variant 16-2088551-G-A is Benign according to our data. Variant chr16-2088551-G-A is described in ClinVar as [Benign]. Clinvar id is 941665.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TSC2NM_000548.5 linkuse as main transcriptc.5365G>A p.Glu1789Lys missense_variant 42/42 ENST00000219476.9 NP_000539.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TSC2ENST00000219476.9 linkuse as main transcriptc.5365G>A p.Glu1789Lys missense_variant 42/425 NM_000548.5 ENSP00000219476 P49815-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000402
AC:
1
AN:
248684
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135088
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000889
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000206
AC:
3
AN:
1459370
Hom.:
0
Cov.:
33
AF XY:
0.00000413
AC XY:
3
AN XY:
726008
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:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000756

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), LabcorpNov 02, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.22
BayesDel_addAF
Pathogenic
0.28
D
BayesDel_noAF
Pathogenic
0.17
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.47
T;.;.;.;.;.;.;.;.;.;.;.;T;.;T
Eigen
Benign
0.12
Eigen_PC
Benign
0.059
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Pathogenic
0.98
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
M_CAP
Uncertain
0.17
D
MetaRNN
Uncertain
0.71
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Uncertain
0.28
D
MutationAssessor
Uncertain
2.4
M;.;.;.;.;.;.;.;.;.;.;.;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
-1.2
N;.;.;N;.;N;.;.;N;N;.;.;.;.;N
REVEL
Uncertain
0.61
Sift
Uncertain
0.014
D;.;.;D;.;D;.;.;D;D;.;.;.;.;D
Sift4G
Benign
0.078
T;.;.;T;.;T;.;.;T;T;.;.;.;.;T
Polyphen
0.97
D;.;.;.;P;P;.;.;D;P;.;.;.;.;.
Vest4
0.63
MutPred
0.34
Gain of methylation at E1789 (P = 0.0071);.;.;.;.;.;.;.;.;.;.;.;.;.;.;
MVP
0.86
ClinPred
0.91
D
GERP RS
3.6
Varity_R
0.15
gMVP
0.61

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: rs45517420; hg19: chr16-2138552; API