chr16-2084591-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP6BS2

The NM_000548.5(TSC2):​c.4369C>T​(p.Arg1457Trp) variant causes a missense change. The variant allele was found at a frequency of 0.00000344 in 1,452,612 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

TSC2
NM_000548.5 missense

Scores

12
6
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 3.64
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 -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP6
Variant 16-2084591-C-T is Benign according to our data. Variant chr16-2084591-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 535870.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Uncertain_significance=1}.
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.4369C>T p.Arg1457Trp missense_variant 34/42 ENST00000219476.9 NP_000539.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TSC2ENST00000219476.9 linkuse as main transcriptc.4369C>T p.Arg1457Trp missense_variant 34/425 NM_000548.5 ENSP00000219476 P49815-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000419
AC:
1
AN:
238898
Hom.:
0
AF XY:
0.00000762
AC XY:
1
AN XY:
131270
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:
0.00000910
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000344
AC:
5
AN:
1452612
Hom.:
0
Cov.:
33
AF XY:
0.00000415
AC XY:
3
AN XY:
722994
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:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000830
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Lymphangiomyomatosis;C1846385:Isolated focal cortical dysplasia type II;C1860707:Tuberous sclerosis 2 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsMay 02, 2022- -
Tuberous sclerosis 2 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 11, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.82
BayesDel_addAF
Pathogenic
0.41
D
BayesDel_noAF
Pathogenic
0.34
CADD
Pathogenic
31
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.89
D;.;.;.;.;.;.;.;.;.;.;.;T;.;T
Eigen
Uncertain
0.29
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.99
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
M_CAP
Pathogenic
0.48
D
MetaRNN
Uncertain
0.73
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Uncertain
0.70
D
MutationAssessor
Uncertain
2.4
M;.;.;.;.;.;.;.;.;.;.;.;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Pathogenic
0.83
D
PROVEAN
Pathogenic
-5.0
D;.;.;D;.;D;.;.;D;D;.;.;.;.;D
REVEL
Pathogenic
0.65
Sift
Uncertain
0.0010
D;.;.;D;.;D;.;.;D;D;.;.;.;.;D
Sift4G
Pathogenic
0.0010
D;.;.;D;.;D;.;.;D;D;.;.;.;.;D
Polyphen
1.0
D;.;.;.;D;D;.;.;D;D;.;.;.;.;.
Vest4
0.58
MutPred
0.31
Loss of methylation at R1457 (P = 0.0245);.;.;.;.;.;.;Loss of methylation at R1457 (P = 0.0245);.;.;.;.;.;.;.;
MVP
0.95
ClinPred
0.99
D
GERP RS
4.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.48
gMVP
0.75

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs746729857; hg19: chr16-2134592; API