rs6597586

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000368.5(TSC1):​c.1142-33A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.134 in 1,612,106 control chromosomes in the GnomAD database, including 15,217 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). There are indicators that this mutation may affect the branch point..

Frequency

Genomes: 𝑓 0.15 ( 1834 hom., cov: 31)
Exomes 𝑓: 0.13 ( 13383 hom. )

Consequence

TSC1
NM_000368.5 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4O:2

Conservation

PhyloP100: 0.194
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 Benign. Variant got -20 ACMG points.

BP4
This place is a probable branch point but likely benign (scored 2 / 10). Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 9-132910725-T-C is Benign according to our data. Variant chr9-132910725-T-C is described in ClinVar as [Benign]. Clinvar id is 48747.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr9-132910725-T-C is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.209 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TSC1NM_000368.5 linkuse as main transcriptc.1142-33A>G intron_variant 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.1142-33A>G intron_variant 1 NM_000368.5 ENSP00000298552.3 Q92574-1
TSC1ENST00000490179.4 linkuse as main transcriptc.1142-33A>G intron_variant 3 ENSP00000495533.2 A0A2R8Y6S8

Frequencies

GnomAD3 genomes
AF:
0.150
AC:
22847
AN:
152062
Hom.:
1824
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.212
Gnomad AMI
AF:
0.0987
Gnomad AMR
AF:
0.103
Gnomad ASJ
AF:
0.139
Gnomad EAS
AF:
0.0848
Gnomad SAS
AF:
0.106
Gnomad FIN
AF:
0.103
Gnomad MID
AF:
0.120
Gnomad NFE
AF:
0.140
Gnomad OTH
AF:
0.143
GnomAD3 exomes
AF:
0.125
AC:
30855
AN:
246716
Hom.:
2064
AF XY:
0.123
AC XY:
16433
AN XY:
133464
show subpopulations
Gnomad AFR exome
AF:
0.218
Gnomad AMR exome
AF:
0.0858
Gnomad ASJ exome
AF:
0.141
Gnomad EAS exome
AF:
0.0875
Gnomad SAS exome
AF:
0.104
Gnomad FIN exome
AF:
0.102
Gnomad NFE exome
AF:
0.139
Gnomad OTH exome
AF:
0.130
GnomAD4 exome
AF:
0.133
AC:
193632
AN:
1459926
Hom.:
13383
Cov.:
34
AF XY:
0.131
AC XY:
95332
AN XY:
726216
show subpopulations
Gnomad4 AFR exome
AF:
0.217
Gnomad4 AMR exome
AF:
0.0890
Gnomad4 ASJ exome
AF:
0.141
Gnomad4 EAS exome
AF:
0.0710
Gnomad4 SAS exome
AF:
0.105
Gnomad4 FIN exome
AF:
0.104
Gnomad4 NFE exome
AF:
0.137
Gnomad4 OTH exome
AF:
0.134
GnomAD4 genome
AF:
0.150
AC:
22885
AN:
152180
Hom.:
1834
Cov.:
31
AF XY:
0.145
AC XY:
10782
AN XY:
74424
show subpopulations
Gnomad4 AFR
AF:
0.212
Gnomad4 AMR
AF:
0.103
Gnomad4 ASJ
AF:
0.139
Gnomad4 EAS
AF:
0.0850
Gnomad4 SAS
AF:
0.104
Gnomad4 FIN
AF:
0.103
Gnomad4 NFE
AF:
0.140
Gnomad4 OTH
AF:
0.148
Alfa
AF:
0.134
Hom.:
1489
Bravo
AF:
0.153
Asia WGS
AF:
0.127
AC:
444
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:4Other:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxJun 21, 2018- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Tuberous sclerosis 1 Benign:1
Benign, criteria provided, single submitterclinical testingKCCC/NGS Laboratory, Kuwait Cancer Control CenterJul 07, 2023- -
Tuberous sclerosis syndrome Other:1
not provided, no classification providedcurationTuberous sclerosis database (TSC1)-- -
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
BayesDel_noAF
Benign
-0.80
CADD
Benign
0.78
DANN
Benign
0.72
BranchPoint Hunter
2.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs6597586; hg19: chr9-135786112; COSMIC: COSV53763254; COSMIC: COSV53763254; API