rs377499122

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_003242.6(TGFBR2):​c.1525-7G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000442 in 1,613,728 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00027 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00046 ( 0 hom. )

Consequence

TGFBR2
NM_003242.6 splice_region, intron

Scores

2
Splicing: ADA: 0.00001052
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:8

Conservation

PhyloP100: -5.08
Variant links:
Genes affected
TGFBR2 (HGNC:11773): (transforming growth factor beta receptor 2) The protein encoded by this gene is a transmembrane protein that has a protein kinase domain, forms a heterodimeric complex with TGF-beta receptor type-1, and binds TGF-beta. This receptor/ligand complex phosphorylates proteins, which then enter the nucleus and regulate the transcription of genes related to cell proliferation, cell cycle arrest, wound healing, immunosuppression, and tumorigenesis. Mutations in this gene have been associated with Marfan Syndrome, Loeys-Deitz Aortic Aneurysm Syndrome, and the development of various types of tumors. Alternatively spliced transcript variants encoding different isoforms have been characterized. [provided by RefSeq, Aug 2017]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.93).
BP6
Variant 3-30691413-G-A is Benign according to our data. Variant chr3-30691413-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 44656.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=4, Uncertain_significance=1, Benign=1}. Variant chr3-30691413-G-A is described in Lovd as [Likely_benign].
BS2
High AC in GnomAd4 at 41 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TGFBR2NM_003242.6 linkuse as main transcriptc.1525-7G>A splice_region_variant, intron_variant ENST00000295754.10 NP_003233.4 P37173-1A3QNQ0

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TGFBR2ENST00000295754.10 linkuse as main transcriptc.1525-7G>A splice_region_variant, intron_variant 1 NM_003242.6 ENSP00000295754.5 P37173-1

Frequencies

GnomAD3 genomes
AF:
0.000269
AC:
41
AN:
152140
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000193
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000456
Gnomad OTH
AF:
0.000958
GnomAD3 exomes
AF:
0.000256
AC:
64
AN:
250242
Hom.:
0
AF XY:
0.000355
AC XY:
48
AN XY:
135286
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.000174
Gnomad ASJ exome
AF:
0.0000996
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000470
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.000460
AC:
673
AN:
1461588
Hom.:
0
Cov.:
31
AF XY:
0.000448
AC XY:
326
AN XY:
727084
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.000201
Gnomad4 ASJ exome
AF:
0.000153
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000561
Gnomad4 OTH exome
AF:
0.000547
GnomAD4 genome
AF:
0.000269
AC:
41
AN:
152140
Hom.:
0
Cov.:
32
AF XY:
0.000202
AC XY:
15
AN XY:
74314
show subpopulations
Gnomad4 AFR
AF:
0.000193
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000456
Gnomad4 OTH
AF:
0.000958
Alfa
AF:
0.000246
Hom.:
0
Bravo
AF:
0.000302
EpiCase
AF:
0.000545
EpiControl
AF:
0.000474

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:8
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Familial thoracic aortic aneurysm and aortic dissection Benign:3
Likely benign, criteria provided, single submitterclinical testingColor Diagnostics, LLC DBA Color HealthApr 13, 2018- -
Likely benign, criteria provided, single submitterclinical testingCenter for Human Genetics, Inc, Center for Human Genetics, IncNov 01, 2016- -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 20, 2024- -
not specified Uncertain:1Benign:1
Uncertain significance, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineApr 13, 2012The 1525-7G>A variant in TGFBR2 has not been previously reported in the literatu re or identified by our laboratory. This variant is located in the 3' splice re gion and computational tools do not predict altered splicing. However, this inf ormation is not predictive enough to rule out pathogenicity. It has also been i dentified in 3/7020 European American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS/). Although t his data supports that the 1525-7G>A variant may be benign, additional studies a re needed to fully assess its clinical significance. -
Benign, criteria provided, single submitterclinical testingGeneDxFeb 01, 2013This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
not provided Benign:2
Likely benign, no assertion criteria providedclinical testingClinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center-- -
Likely benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, Amsterdam University Medical Center-- -
Ehlers-Danlos syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingGenome Diagnostics Laboratory, The Hospital for Sick ChildrenJun 01, 2020- -
TGFBR2-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMar 06, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.93
CADD
Benign
0.096
DANN
Benign
0.76
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000011
dbscSNV1_RF
Benign
0.020
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: rs377499122; hg19: chr3-30732905; COSMIC: COSV105889486; API