rs1033725987

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000368.5(TSC1):​c.2303G>T​(p.Arg768Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Consequence

TSC1
NM_000368.5 missense

Scores

1
9
9

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.86
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 Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.25257057).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TSC1NM_000368.5 linkc.2303G>T p.Arg768Leu missense_variant Exon 18 of 23 ENST00000298552.9 NP_000359.1 Q92574-1Q86WV8X5D9D2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TSC1ENST00000298552.9 linkc.2303G>T p.Arg768Leu missense_variant Exon 18 of 23 1 NM_000368.5 ENSP00000298552.3 Q92574-1
TSC1ENST00000490179.4 linkc.2303G>T p.Arg768Leu missense_variant Exon 19 of 24 3 ENSP00000495533.2 A0A2R8Y6S8

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.31
BayesDel_addAF
Pathogenic
0.16
D
BayesDel_noAF
Uncertain
0.0
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.40
T;.;T;.;.;T;.;T;.;.;.
Eigen
Uncertain
0.23
Eigen_PC
Uncertain
0.34
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.90
.;D;D;D;D;.;.;.;D;D;.
M_CAP
Uncertain
0.087
D
MetaRNN
Benign
0.25
T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.49
T
MutationAssessor
Benign
1.5
L;.;L;.;.;L;.;L;.;.;.
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-1.4
N;N;N;.;.;.;.;.;.;.;.
REVEL
Uncertain
0.46
Sift
Benign
0.19
T;T;T;.;.;.;.;.;.;.;.
Sift4G
Uncertain
0.026
D;D;D;.;.;.;.;.;.;.;.
Polyphen
0.90
P;.;P;.;.;P;.;P;.;.;.
Vest4
0.66
MutPred
0.31
Loss of MoRF binding (P = 0.0775);.;Loss of MoRF binding (P = 0.0775);.;.;Loss of MoRF binding (P = 0.0775);.;Loss of MoRF binding (P = 0.0775);.;.;.;
MVP
0.59
MPC
0.64
ClinPred
0.81
D
GERP RS
5.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.43
gMVP
0.45

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr9-135778080; API