Genetic Variant TGFBR1:c.97+8205A>C (chr9-99113507-A-C) – ACMG Classification: Benign (-12 pts)

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_004612.4(TGFBR1):c.97+8205A>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.356 in 151,990 control chromosomes in the GnomAD database, including 9,769 homozygotes. 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: 𝑓 0.36 ( 9769 hom., cov: 32)

Consequence

TGFBR1
NM_004612.4 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.970

Publications

21 publications found

Variant links:

Genes affected

TGFBR1 (HGNC:11772): (transforming growth factor beta receptor 1) The protein encoded by this gene forms a heteromeric complex with type II TGF-beta receptors when bound to TGF-beta, transducing the TGF-beta signal from the cell surface to the cytoplasm. The encoded protein is a serine/threonine protein kinase. Mutations in this gene have been associated with Loeys-Dietz aortic aneurysm syndrome (LDAS). Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2008]

TGFBR1 Gene-Disease associations (from GenCC):

familial thoracic aortic aneurysm and aortic dissection
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
Loeys-Dietz syndrome
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
Loeys-Dietz syndrome 1
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, PanelApp Australia, Genomics England PanelApp, G2P
multiple self-healing squamous epithelioma
Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen

TGFBR1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.97).

BA1

GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.452 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TGFBR1	NM_004612.4 link	c.97+8205A>C		intron_variant	Intron 1 of 8	ENST00000374994.9	NP_004603.1	P36897-1Q5T7S2B4DXN7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TGFBR1	ENST00000374994.9 link	c.97+8205A>C		intron_variant	Intron 1 of 8	1	NM_004612.4	ENSP00000364133.4		P36897-1

Frequencies

GnomAD3 genomes

AF:

0.356

AC:

54021

AN:

151872

Hom.:

9748

Cov.:

show subpopulations

Gnomad AFR

AF:

0.369

Gnomad AMI

AF:

0.283

Gnomad AMR

AF:

0.339

Gnomad ASJ

AF:

0.317

Gnomad EAS

AF:

0.468

Gnomad SAS

AF:

0.359

Gnomad FIN

AF:

0.331

Gnomad MID

AF:

0.307

Gnomad NFE

AF:

0.350

Gnomad OTH

AF:

0.354

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome

AF:

0.356

AC:

54098

AN:

151990

Hom.:

9769

Cov.:

AF XY:

0.354

AC XY:

26336

AN XY:

74296

show subpopulations

African (AFR)

AF:

0.370

AC:

15334

AN:

41424

American (AMR)

AF:

0.339

AC:

5176

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.317

AC:

1100

AN:

3468

East Asian (EAS)

AF:

0.468

AC:

2421

AN:

5178

South Asian (SAS)

AF:

0.358

AC:

1725

AN:

4812

European-Finnish (FIN)

AF:

0.331

AC:

3493

AN:

10562

Middle Eastern (MID)

AF:

0.299

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.350

AC:

23752

AN:

67954

Other (OTH)

AF:

0.356

AC:

751

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

1786

3573

5359

7146

8932

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

544

1088

1632

2176

2720

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.337

Hom.:

14577

Bravo

AF:

0.355

Asia WGS

AF:

0.416

AC:

1446

AN:

3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.97

CADD

Benign

4.3

(source)

DANN

Benign

0.84

PhyloP100

-0.97

Mutation Taster

=100/0

polymorphism (auto)

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over