16-2083900-C-T

Variant summary

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

The NM_000548.5(TSC2):​c.4005+84C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0854 in 1,518,862 control chromosomes in the GnomAD database, including 6,158 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.064 ( 435 hom., cov: 34)
Exomes 𝑓: 0.088 ( 5723 hom. )

Consequence

TSC2
NM_000548.5 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.184
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=-0.88).
BP6
Variant 16-2083900-C-T is Benign according to our data. Variant chr16-2083900-C-T is described in ClinVar as [Benign]. Clinvar id is 1266887.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.0926 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TSC2NM_000548.5 linkuse as main transcriptc.4005+84C>T intron_variant ENST00000219476.9 NP_000539.2 P49815-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TSC2ENST00000219476.9 linkuse as main transcriptc.4005+84C>T intron_variant 5 NM_000548.5 ENSP00000219476.3 P49815-1

Frequencies

GnomAD3 genomes
AF:
0.0639
AC:
9725
AN:
152102
Hom.:
435
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0165
Gnomad AMI
AF:
0.133
Gnomad AMR
AF:
0.0539
Gnomad ASJ
AF:
0.0781
Gnomad EAS
AF:
0.0370
Gnomad SAS
AF:
0.0505
Gnomad FIN
AF:
0.0763
Gnomad MID
AF:
0.0696
Gnomad NFE
AF:
0.0945
Gnomad OTH
AF:
0.0641
GnomAD4 exome
AF:
0.0878
AC:
120006
AN:
1366642
Hom.:
5723
AF XY:
0.0873
AC XY:
58626
AN XY:
671510
show subpopulations
Gnomad4 AFR exome
AF:
0.0145
Gnomad4 AMR exome
AF:
0.0372
Gnomad4 ASJ exome
AF:
0.0737
Gnomad4 EAS exome
AF:
0.0538
Gnomad4 SAS exome
AF:
0.0504
Gnomad4 FIN exome
AF:
0.0863
Gnomad4 NFE exome
AF:
0.0961
Gnomad4 OTH exome
AF:
0.0816
GnomAD4 genome
AF:
0.0638
AC:
9717
AN:
152220
Hom.:
435
Cov.:
34
AF XY:
0.0633
AC XY:
4710
AN XY:
74416
show subpopulations
Gnomad4 AFR
AF:
0.0165
Gnomad4 AMR
AF:
0.0538
Gnomad4 ASJ
AF:
0.0781
Gnomad4 EAS
AF:
0.0369
Gnomad4 SAS
AF:
0.0499
Gnomad4 FIN
AF:
0.0763
Gnomad4 NFE
AF:
0.0945
Gnomad4 OTH
AF:
0.0629
Alfa
AF:
0.0853
Hom.:
400
Bravo
AF:
0.0581
Asia WGS
AF:
0.0390
AC:
134
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxJun 25, 2018- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.88
CADD
Benign
1.6
DANN
Benign
0.36

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: rs30259; hg19: chr16-2133901; COSMIC: COSV104375821; COSMIC: COSV104375821; API