rs796053475

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 2P and 12B. PM1BP6_Very_StrongBS2

The ENST00000219476.9(TSC2):​c.3374G>A​(p.Arg1125Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000686 in 1,603,250 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1125W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000069 ( 0 hom. )

Consequence

TSC2
ENST00000219476.9 missense

Scores

8
7
3

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 9.12

Publications

3 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 13 benign, 31 uncertain in ENST00000219476.9
BP6
Variant 16-2079646-G-A is Benign according to our data. Variant chr16-2079646-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 207677.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAdExome4 at 10 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000219476.9. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TSC2
NM_000548.5
MANE Select
c.3374G>Ap.Arg1125Gln
missense
Exon 29 of 42NP_000539.2
TSC2
NM_001406663.1
c.3371G>Ap.Arg1124Gln
missense
Exon 29 of 42NP_001393592.1
TSC2
NM_001114382.3
c.3374G>Ap.Arg1125Gln
missense
Exon 29 of 41NP_001107854.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TSC2
ENST00000219476.9
TSL:5 MANE Select
c.3374G>Ap.Arg1125Gln
missense
Exon 29 of 42ENSP00000219476.3
TSC2
ENST00000350773.9
TSL:1
c.3374G>Ap.Arg1125Gln
missense
Exon 29 of 41ENSP00000344383.4
TSC2
ENST00000401874.7
TSL:1
c.3242G>Ap.Arg1081Gln
missense
Exon 28 of 40ENSP00000384468.2

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152190
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000878
AC:
2
AN:
227772
AF XY:
0.00000808
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000578
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000689
AC:
10
AN:
1451060
Hom.:
0
Cov.:
32
AF XY:
0.00000694
AC XY:
5
AN XY:
720892
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33364
American (AMR)
AF:
0.00
AC:
0
AN:
43430
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25900
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39332
South Asian (SAS)
AF:
0.0000236
AC:
2
AN:
84810
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51208
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5244
European-Non Finnish (NFE)
AF:
0.00000632
AC:
7
AN:
1107914
Other (OTH)
AF:
0.0000167
AC:
1
AN:
59858
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.440
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00000657
AC:
1
AN:
152190
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74344
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41456
American (AMR)
AF:
0.00
AC:
0
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68018
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

ClinVar submissions as Germline

Significance:Benign/Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
2
Tuberous sclerosis 2 (2)
-
-
1
Hereditary cancer-predisposing syndrome (1)
-
-
1
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Pathogenic
0.31
D
BayesDel_noAF
Pathogenic
0.20
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.49
T
Eigen
Pathogenic
0.76
Eigen_PC
Pathogenic
0.73
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Pathogenic
0.37
D
MetaRNN
Uncertain
0.65
D
MetaSVM
Uncertain
0.67
D
MutationAssessor
Uncertain
2.3
M
PhyloP100
9.1
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
-1.4
N
REVEL
Uncertain
0.61
Sift
Uncertain
0.026
D
Sift4G
Benign
0.094
T
Polyphen
1.0
D
Vest4
0.73
MutPred
0.21
Loss of methylation at R1125 (P = 0.0376)
MVP
0.93
ClinPred
0.97
D
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Varity_R
0.21
gMVP
0.46
Mutation Taster
=41/59
disease causing

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

Other links and lift over

dbSNP: rs796053475; hg19: chr16-2129647; COSMIC: COSV54774348; COSMIC: COSV54774348; API