chr16-2085073-G-A

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_StrongBA1

The NM_000548.5(TSC2):​c.4569+47G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00342 in 1,610,572 control chromosomes in the GnomAD database, including 136 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.017 ( 70 hom., cov: 34)
Exomes 𝑓: 0.0020 ( 66 hom. )

Consequence

TSC2
NM_000548.5 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4O:1

Conservation

PhyloP100: -1.19
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 -16 ACMG points.

BP6
Variant 16-2085073-G-A is Benign according to our data. Variant chr16-2085073-G-A is described in ClinVar as [Benign]. Clinvar id is 49858.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-2085073-G-A is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0565 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TSC2NM_000548.5 linkuse as main transcriptc.4569+47G>A 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.4569+47G>A intron_variant 5 NM_000548.5 ENSP00000219476 P49815-1

Frequencies

GnomAD3 genomes
AF:
0.0171
AC:
2605
AN:
152188
Hom.:
71
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0583
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00778
Gnomad ASJ
AF:
0.00749
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000235
Gnomad OTH
AF:
0.0124
GnomAD3 exomes
AF:
0.00473
AC:
1179
AN:
249126
Hom.:
27
AF XY:
0.00347
AC XY:
470
AN XY:
135266
show subpopulations
Gnomad AFR exome
AF:
0.0585
Gnomad AMR exome
AF:
0.00333
Gnomad ASJ exome
AF:
0.00542
Gnomad EAS exome
AF:
0.000218
Gnomad SAS exome
AF:
0.000164
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000312
Gnomad OTH exome
AF:
0.00477
GnomAD4 exome
AF:
0.00199
AC:
2897
AN:
1458266
Hom.:
66
Cov.:
32
AF XY:
0.00176
AC XY:
1279
AN XY:
725600
show subpopulations
Gnomad4 AFR exome
AF:
0.0601
Gnomad4 AMR exome
AF:
0.00347
Gnomad4 ASJ exome
AF:
0.00705
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.000162
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000205
Gnomad4 OTH exome
AF:
0.00468
GnomAD4 genome
AF:
0.0172
AC:
2618
AN:
152306
Hom.:
70
Cov.:
34
AF XY:
0.0171
AC XY:
1271
AN XY:
74472
show subpopulations
Gnomad4 AFR
AF:
0.0585
Gnomad4 AMR
AF:
0.00777
Gnomad4 ASJ
AF:
0.00749
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000235
Gnomad4 OTH
AF:
0.0123
Alfa
AF:
0.00208
Hom.:
0
Bravo
AF:
0.0197
Asia WGS
AF:
0.00289
AC:
10
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:4Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxJun 23, 2018- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Tuberous sclerosis 2 Benign:1
Benign, criteria provided, single submitterclinical testingKCCC/NGS Laboratory, Kuwait Cancer Control CenterJul 07, 2023- -
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
-0.89
CADD
Benign
0.10
DANN
Benign
0.40

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.28
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.28
Position offset: 1

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: rs45517351; hg19: chr16-2135074; COSMIC: COSV104375884; COSMIC: COSV104375884; API