rs137854220

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP6_ModerateBS1BS2

The NM_000548.5(TSC2):​c.5161-28_5161-25del variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0101 in 1,612,902 control chromosomes in the GnomAD database, including 128 homozygotes. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0082 ( 10 hom., cov: 33)
Exomes 𝑓: 0.010 ( 118 hom. )

Consequence

TSC2
NM_000548.5 intron

Scores

Not classified

Clinical Significance

Likely benign criteria provided, single submitter B:1O:2

Conservation

PhyloP100: 2.09
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 -10 ACMG points.

BP6
Variant 16-2088196-TAGTG-T is Benign according to our data. Variant chr16-2088196-TAGTG-T is described in ClinVar as [Likely_benign]. Clinvar id is 49945.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr16-2088196-TAGTG-T is described in Lovd as [Benign].
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.00824 (1255/152226) while in subpopulation SAS AF= 0.0141 (68/4832). AF 95% confidence interval is 0.0115. There are 10 homozygotes in gnomad4. There are 591 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 1255 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TSC2NM_000548.5 linkuse as main transcriptc.5161-28_5161-25del intron_variant ENST00000219476.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TSC2ENST00000219476.9 linkuse as main transcriptc.5161-28_5161-25del intron_variant 5 NM_000548.5 P49815-1

Frequencies

GnomAD3 genomes
AF:
0.00827
AC:
1258
AN:
152108
Hom.:
10
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00140
Gnomad AMI
AF:
0.103
Gnomad AMR
AF:
0.00779
Gnomad ASJ
AF:
0.00577
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.0145
Gnomad FIN
AF:
0.00358
Gnomad MID
AF:
0.0190
Gnomad NFE
AF:
0.0122
Gnomad OTH
AF:
0.0100
GnomAD3 exomes
AF:
0.00860
AC:
2155
AN:
250500
Hom.:
22
AF XY:
0.00922
AC XY:
1252
AN XY:
135744
show subpopulations
Gnomad AFR exome
AF:
0.00124
Gnomad AMR exome
AF:
0.00393
Gnomad ASJ exome
AF:
0.00738
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.0162
Gnomad FIN exome
AF:
0.00513
Gnomad NFE exome
AF:
0.0112
Gnomad OTH exome
AF:
0.00850
GnomAD4 exome
AF:
0.0103
AC:
15017
AN:
1460676
Hom.:
118
AF XY:
0.0106
AC XY:
7718
AN XY:
726638
show subpopulations
Gnomad4 AFR exome
AF:
0.00158
Gnomad4 AMR exome
AF:
0.00385
Gnomad4 ASJ exome
AF:
0.00639
Gnomad4 EAS exome
AF:
0.00144
Gnomad4 SAS exome
AF:
0.0165
Gnomad4 FIN exome
AF:
0.00529
Gnomad4 NFE exome
AF:
0.0111
Gnomad4 OTH exome
AF:
0.00880
GnomAD4 genome
AF:
0.00824
AC:
1255
AN:
152226
Hom.:
10
Cov.:
33
AF XY:
0.00794
AC XY:
591
AN XY:
74448
show subpopulations
Gnomad4 AFR
AF:
0.00140
Gnomad4 AMR
AF:
0.00778
Gnomad4 ASJ
AF:
0.00577
Gnomad4 EAS
AF:
0.000386
Gnomad4 SAS
AF:
0.0141
Gnomad4 FIN
AF:
0.00358
Gnomad4 NFE
AF:
0.0122
Gnomad4 OTH
AF:
0.00992
Alfa
AF:
0.0112
Hom.:
3
Bravo
AF:
0.00751
Asia WGS
AF:
0.00376
AC:
13
AN:
3476

ClinVar

Significance: Likely benign
Submissions summary: Benign:1Other:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Tuberous sclerosis syndrome Other:2
not provided, no classification providedcurationTuberous sclerosis database (TSC2)Apr 06, 2011- -
not provided, no classification providedcurationTuberous sclerosis database (TSC2)-- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxJun 23, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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: rs1799758; hg19: chr16-2138197; API