9-99138018-A-G

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PM1PM2PM5PP2PP3_StrongPP5

The NM_004612.4(TGFBR1):​c.734A>G​(p.Glu245Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 13/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in Lovd as Pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E245D) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)

Consequence

TGFBR1
NM_004612.4 missense

Scores

17
1
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.27
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]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PM1
In a hotspot region, there are 5 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 9 uncertain in NM_004612.4
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr9-99138019-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 800489.Status of the report is no_assertion_criteria_provided, 0 stars.
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), TGFBR1. . Gene score misZ 2.7935 (greater than the threshold 3.09). Trascript score misZ 3.6468 (greater than threshold 3.09). GenCC has associacion of gene with familial thoracic aortic aneurysm and aortic dissection, Loeys-Dietz syndrome, multiple self-healing squamous epithelioma, Loeys-Dietz syndrome 1.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.99
PP5
Variant 9-99138018-A-G is Pathogenic according to our data. Variant chr9-99138018-A-G is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TGFBR1NM_004612.4 linkuse as main transcriptc.734A>G p.Glu245Gly missense_variant 4/9 ENST00000374994.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TGFBR1ENST00000374994.9 linkuse as main transcriptc.734A>G p.Glu245Gly missense_variant 4/91 NM_004612.4 P4P36897-1

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
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.59
D
BayesDel_noAF
Pathogenic
0.61
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.51
D;.;.;D;.
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.92
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.98
D;D;D;D;D
M_CAP
Pathogenic
0.77
D
MetaRNN
Pathogenic
0.99
D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
3.7
H;.;.;.;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Pathogenic
0.86
D
PROVEAN
Pathogenic
-6.8
D;D;D;D;D
REVEL
Pathogenic
0.98
Sift
Pathogenic
0.0
D;D;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D;D
Polyphen
1.0
D;D;.;.;.
Vest4
0.93
MutPred
0.95
Gain of MoRF binding (P = 0.0225);.;.;.;.;
MVP
0.99
MPC
3.6
ClinPred
1.0
D
GERP RS
5.6
Varity_R
0.96
gMVP
0.98

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: chr9-101900300; API