rs7196184

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000548.5(TSC2):​c.2221-28A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0193 in 1,612,948 control chromosomes in the GnomAD database, including 4,960 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.10 ( 2645 hom., cov: 33)
Exomes 𝑓: 0.011 ( 2315 hom. )

Consequence

TSC2
NM_000548.5 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3O:1

Conservation

PhyloP100: -0.136
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 Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.94).
BP6
Variant 16-2072821-A-G is Benign according to our data. Variant chr16-2072821-A-G is described in ClinVar as [Benign]. Clinvar id is 49604.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-2072821-A-G is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.346 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TSC2NM_000548.5 linkuse as main transcriptc.2221-28A>G intron_variant ENST00000219476.9 NP_000539.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TSC2ENST00000219476.9 linkuse as main transcriptc.2221-28A>G intron_variant 5 NM_000548.5 ENSP00000219476 P49815-1

Frequencies

GnomAD3 genomes
AF:
0.101
AC:
15380
AN:
151938
Hom.:
2619
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.350
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0408
Gnomad ASJ
AF:
0.00750
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00166
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0348
Gnomad NFE
AF:
0.00128
Gnomad OTH
AF:
0.0731
GnomAD3 exomes
AF:
0.0266
AC:
6641
AN:
249626
Hom.:
1005
AF XY:
0.0194
AC XY:
2624
AN XY:
135336
show subpopulations
Gnomad AFR exome
AF:
0.351
Gnomad AMR exome
AF:
0.0193
Gnomad ASJ exome
AF:
0.00529
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.000849
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00112
Gnomad OTH exome
AF:
0.0155
GnomAD4 exome
AF:
0.0107
AC:
15655
AN:
1460892
Hom.:
2315
Cov.:
31
AF XY:
0.00902
AC XY:
6558
AN XY:
726720
show subpopulations
Gnomad4 AFR exome
AF:
0.357
Gnomad4 AMR exome
AF:
0.0218
Gnomad4 ASJ exome
AF:
0.00685
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.000812
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000746
Gnomad4 OTH exome
AF:
0.0256
GnomAD4 genome
AF:
0.102
AC:
15453
AN:
152056
Hom.:
2645
Cov.:
33
AF XY:
0.0994
AC XY:
7389
AN XY:
74340
show subpopulations
Gnomad4 AFR
AF:
0.351
Gnomad4 AMR
AF:
0.0408
Gnomad4 ASJ
AF:
0.00750
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00145
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00128
Gnomad4 OTH
AF:
0.0723
Alfa
AF:
0.0761
Hom.:
425
Bravo
AF:
0.115
Asia WGS
AF:
0.0270
AC:
94
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:3Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxJun 14, 2018This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Tuberous sclerosis syndrome Other:1
not provided, no classification providedcurationTuberous sclerosis database (TSC2)-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.94
CADD
Benign
1.3
DANN
Benign
0.42

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs7196184; hg19: chr16-2122822; COSMIC: COSV104375752; COSMIC: COSV104375752; API