chr9-99105202-G-A

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_004612.4(TGFBR1):​c.-4G>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000268 in 1,083,624 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000034 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

TGFBR1
NM_004612.4 5_prime_UTR

Scores

1
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 2.39
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.34).
BP6
Variant 9-99105202-G-A is Benign according to our data. Variant chr9-99105202-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 379554.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.
BS2
High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TGFBR1NM_004612.4 linkuse as main transcriptc.-4G>A 5_prime_UTR_variant 1/9 ENST00000374994.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TGFBR1ENST00000374994.9 linkuse as main transcriptc.-4G>A 5_prime_UTR_variant 1/91 NM_004612.4 P4P36897-1

Frequencies

GnomAD3 genomes
AF:
0.0000338
AC:
5
AN:
147736
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000492
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:
0.0000451
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000256
AC:
24
AN:
935888
Hom.:
0
Cov.:
30
AF XY:
0.0000365
AC XY:
16
AN XY:
438756
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:
0.0000277
Gnomad4 OTH exome
AF:
0.0000295
GnomAD4 genome
AF:
0.0000338
AC:
5
AN:
147736
Hom.:
0
Cov.:
32
AF XY:
0.0000278
AC XY:
2
AN XY:
72006
show subpopulations
Gnomad4 AFR
AF:
0.0000492
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:
0.0000451
Gnomad4 OTH
AF:
0.00

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesSep 12, 2017- -
Likely benign, criteria provided, single submitterclinical testingGeneDxMar 15, 2023See Variant Classification Assertion Criteria. -
Familial thoracic aortic aneurysm and aortic dissection Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 12, 2017The c.-4G>A variant is located in the 5' untranslated region (5’ UTR) of the TGFBR1 gene. This variant results from a G to A substitution 4 bases upstream from the first translated codon. This nucleotide position is highly conserved on limited sequence alignment. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.34
CADD
Benign
22
DANN
Uncertain
0.99

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: rs1007933061; hg19: chr9-101867484; API