rs1555506028

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP3

The NM_000548.5(TSC2):​c.1990T>C​(p.Ser664Pro) variant causes a missense change involving the alteration of a conserved nucleotide. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S664F) has been classified as Likely benign.

Frequency

Genomes: š‘“ 0.0000071 ( 0 hom., cov: 33)
Exomes š‘“: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

TSC2
NM_000548.5 missense

Scores

6
10
3

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.43

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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.791

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TSC2NM_000548.5 linkc.1990T>C p.Ser664Pro missense_variant Exon 19 of 42 ENST00000219476.9 NP_000539.2 P49815-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TSC2ENST00000219476.9 linkc.1990T>C p.Ser664Pro missense_variant Exon 19 of 42 5 NM_000548.5 ENSP00000219476.3 P49815-1

Frequencies

GnomAD3 genomes
AF:
0.00000706
AC:
1
AN:
141574
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000112
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AC0;AS_VQSR
AF:
0.00
AC:
0
AN:
1444134
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
716990
African (AFR)
AF:
0.00
AC:
0
AN:
33086
American (AMR)
AF:
0.00
AC:
0
AN:
43288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25710
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38998
South Asian (SAS)
AF:
0.00
AC:
0
AN:
83476
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50870
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4430
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1104744
Other (OTH)
AF:
0.00
AC:
0
AN:
59532
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00000706
AC:
1
AN:
141574
Hom.:
0
Cov.:
33
AF XY:
0.0000146
AC XY:
1
AN XY:
68398
show subpopulations
āš ļø The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
36170
American (AMR)
AF:
0.00
AC:
0
AN:
14314
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3386
East Asian (EAS)
AF:
0.00
AC:
0
AN:
4816
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4520
European-Finnish (FIN)
AF:
0.000112
AC:
1
AN:
8904
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
272
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
66332
Other (OTH)
AF:
0.00
AC:
0
AN:
1968
āš ļø The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.225
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.25
BayesDel_addAF
Pathogenic
0.28
D
BayesDel_noAF
Pathogenic
0.17
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.63
D;.;.;.;.;.;.;.;.;.;.;.;D;.;D
Eigen
Uncertain
0.42
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.93
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
M_CAP
Pathogenic
0.30
D
MetaRNN
Pathogenic
0.79
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Uncertain
0.60
D
MutationAssessor
Uncertain
2.4
M;.;.;.;M;M;.;.;.;M;.;M;.;.;.
PhyloP100
7.4
PrimateAI
Uncertain
0.66
T
PROVEAN
Uncertain
-2.4
N;.;.;D;.;N;.;.;D;N;.;.;.;.;N
REVEL
Uncertain
0.63
Sift
Benign
0.15
T;.;.;T;.;T;.;.;T;T;.;.;.;.;T
Sift4G
Pathogenic
0.0
D;.;.;D;.;D;.;.;D;D;.;.;.;.;D
Polyphen
0.99
D;.;.;.;D;D;.;.;D;D;.;.;.;.;.
Vest4
0.58
MutPred
0.33
Loss of phosphorylation at S664 (P = 0.0069);Loss of phosphorylation at S664 (P = 0.0069);Loss of phosphorylation at S664 (P = 0.0069);.;Loss of phosphorylation at S664 (P = 0.0069);Loss of phosphorylation at S664 (P = 0.0069);Loss of phosphorylation at S664 (P = 0.0069);Loss of phosphorylation at S664 (P = 0.0069);.;Loss of phosphorylation at S664 (P = 0.0069);Loss of phosphorylation at S664 (P = 0.0069);Loss of phosphorylation at S664 (P = 0.0069);Loss of phosphorylation at S664 (P = 0.0069);Loss of phosphorylation at S664 (P = 0.0069);.;
MVP
0.87
ClinPred
0.92
D
GERP RS
5.5
Varity_R
0.40
gMVP
0.59
Mutation Taster
=33/67
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: rs1555506028; hg19: chr16-2121828; API