NM_000548.5:c.4663-38_4663-18dupGGGAGTGATGCCACCCTGCCT

Variant names:

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP6_ModerateBS1BS2

The NM_000548.5(TSC2):c.4663-38_4663-18dupGGGAGTGATGCCACCCTGCCT variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000388 in 1,610,968 control chromosomes in the GnomAD database, with no homozygous occurrence. It is difficult to determine the true allele frequency of this variant because it is of type INS_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., cov: 34)

Exomes 𝑓: 0.00040 ( 0 hom. )

Consequence

TSC2
NM_000548.5 intron

Scores

Not classified

Clinical Significance

Benign criteria provided, single submitter B:1O:1

Conservation

PhyloP100: -0.935

Publications

0 publications found

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]

TSC2 Gene-Disease associations (from GenCC):

tuberous sclerosis
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
tuberous sclerosis 2
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp, Ambry Genetics
lymphangioleiomyomatosis
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
tuberous sclerosis complex
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

TSC2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP6

Variant 16-2086154-C-CGGGAGTGATGCCACCCTGCCT is Benign according to our data. Variant chr16-2086154-C-CGGGAGTGATGCCACCCTGCCT is described in ClinVar as Benign. ClinVar VariationId is 49313.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.000404 (590/1458844) while in subpopulation MID AF = 0.000525 (3/5714). AF 95% confidence interval is 0.000454. There are 0 homozygotes in GnomAdExome4. There are 303 alleles in the male GnomAdExome4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 35 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TSC2	NM_000548.5 link	c.4663-38_4663-18dupGGGAGTGATGCCACCCTGCCT		intron_variant	Intron 36 of 41	ENST00000219476.9	NP_000539.2	P49815-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TSC2	ENST00000219476.9 link	c.4663-39_4663-38insGGGAGTGATGCCACCCTGCCT		intron_variant	Intron 36 of 41	5	NM_000548.5	ENSP00000219476.3		P49815-1

Frequencies

GnomAD3 genomes

AF:

0.000230

AC:

AN:

152008

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000368

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000266

AC:

AN:

244618

AF XY:

0.000307

show subpopulations

Gnomad AFR exome

AF:

0.0000642

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000481

Gnomad NFE exome

AF:

0.000504

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.000404

AC:

590

AN:

1458844

Hom.:

Cov.:

AF XY:

0.000417

AC XY:

303

AN XY:

725814

show subpopulations

African (AFR)

AF:

0.000149

AC:

AN:

33458

American (AMR)

AF:

0.000179

AC:

AN:

44662

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26104

East Asian (EAS)

AF:

0.00

AC:

AN:

39684

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86172

European-Finnish (FIN)

AF:

0.000137

AC:

AN:

51276

Middle Eastern (MID)

AF:

0.000525

AC:

AN:

5714

European-Non Finnish (NFE)

AF:

0.000489

AC:

543

AN:

1111458

Other (OTH)

AF:

0.000365

AC:

AN:

60316

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.470

Heterozygous variant carriers

118

147

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000230

AC:

AN:

152124

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74364

show subpopulations

African (AFR)

AF:

0.000120

AC:

AN:

41514

American (AMR)

AF:

0.000262

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5152

South Asian (SAS)

AF:

0.000207

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000368

AC:

AN:

67950

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.466

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000553

Hom.:

ClinVar

Significance: Benign

Submissions summary: Benign:1Other:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Jan 14, 2015

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The variant is found in INFANT-EPI panel(s). -

Tuberous sclerosis syndrome

Other:1

Tuberous sclerosis database (TSC2)

Significance:not provided

Review Status:no classification provided

Collection Method:curation

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

-0.94

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over