rs118203347

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PP2PP3_Strong

The NM_000368.5(TSC1):ā€‹c.203A>Gā€‹(p.His68Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,613,742 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as not provided (no stars).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

TSC1
NM_000368.5 missense

Scores

11
7
1

Clinical Significance

not provided no classification provided O:1

Conservation

PhyloP100: 7.76
Variant links:
Genes affected
TSC1 (HGNC:12362): (TSC complex subunit 1) This gene is a tumor suppressor gene that encodes the growth inhibitory protein hamartin. The encoded protein interacts with and stabilizes the GTPase activating protein tuberin. This hamartin-tuberin complex negatively regulates mammalian target of rapamycin complex 1 (mTORC1) signaling which is a major regulator of anabolic cell growth. This protein also functions as a co-chaperone for Hsp90 that inhibits its ATPase activity. This protein functions as a facilitator of Hsp90-mediated folding of kinase and non-kinase clients, including TSC2 and thereby preventing their ubiquitination and proteasomal degradation. 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 Likely_pathogenic. Variant got 7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), TSC1. . Gene score misZ 2.3217 (greater than the threshold 3.09). Trascript score misZ 3.6986 (greater than threshold 3.09). GenCC has associacion of gene with lung lymphangioleiomyomatosis, tuberous sclerosis 1, tuberous sclerosis, tuberous sclerosis complex, lymphangioleiomyomatosis.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.957

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TSC1NM_000368.5 linkuse as main transcriptc.203A>G p.His68Arg missense_variant 4/23 ENST00000298552.9 NP_000359.1 Q92574-1Q86WV8X5D9D2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TSC1ENST00000298552.9 linkuse as main transcriptc.203A>G p.His68Arg missense_variant 4/231 NM_000368.5 ENSP00000298552.3 Q92574-1
TSC1ENST00000490179.4 linkuse as main transcriptc.203A>G p.His68Arg missense_variant 5/243 ENSP00000495533.2 A0A2R8Y6S8

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152208
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
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
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461534
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
727050
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152208
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74364
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

Significance: not provided
Submissions summary: Other:1
Revision: no classification provided
LINK: link

Submissions by phenotype

Malignant tumor of urinary bladder Other:1
not provided, no classification providedcurationTuberous sclerosis database (TSC1)-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.76
BayesDel_addAF
Pathogenic
0.42
D
BayesDel_noAF
Pathogenic
0.37
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.85
D;.;D;.;D;.;D;.;.;.;.;.;.;.;.;.;.;D;.;.;.
Eigen
Pathogenic
0.69
Eigen_PC
Pathogenic
0.69
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.87
.;D;D;D;.;.;.;D;D;.;D;.;.;D;D;D;D;D;D;D;D
M_CAP
Uncertain
0.25
D
MetaRNN
Pathogenic
0.96
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Uncertain
0.73
D
MutationAssessor
Uncertain
2.5
M;M;M;.;M;.;M;.;.;M;.;.;.;.;.;.;.;.;.;.;.
PrimateAI
Uncertain
0.66
T
PROVEAN
Pathogenic
-6.3
D;D;D;.;.;.;.;.;.;.;.;.;.;.;.;.;.;D;.;.;.
REVEL
Pathogenic
0.91
Sift
Uncertain
0.0060
D;D;D;.;.;.;.;.;.;.;.;.;.;.;.;.;.;D;.;.;.
Sift4G
Pathogenic
0.0
D;D;D;.;.;.;.;.;.;.;.;.;.;.;.;.;.;D;.;.;.
Polyphen
0.85
P;.;P;.;P;.;P;.;.;.;.;D;D;D;.;.;.;D;.;.;.
Vest4
0.81
MutPred
0.85
Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);Loss of ubiquitination at K70 (P = 0.0997);
MVP
0.91
MPC
1.6
ClinPred
0.99
D
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.71
gMVP
0.47

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: rs118203347; hg19: chr9-135802595; COSMIC: COSV53771394; COSMIC: COSV53771394; API