5-136046406-C-A

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM1PM2PM5PP5_Moderate

The NM_000358.3(TGFBI):c.370C>A(p.Arg124Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,632 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R124C) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TGFBI
NM_000358.3 missense

Scores

Clinical Significance

Pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 1.32

Publications

161 publications found

Variant links:

Genes affected

TGFBI (HGNC:11771): (transforming growth factor beta induced) This gene encodes an RGD-containing protein that binds to type I, II and IV collagens. The RGD motif is found in many extracellular matrix proteins modulating cell adhesion and serves as a ligand recognition sequence for several integrins. This protein plays a role in cell-collagen interactions and may be involved in endochondrial bone formation in cartilage. The protein is induced by transforming growth factor-beta and acts to inhibit cell adhesion. Mutations in this gene are associated with multiple types of corneal dystrophy. [provided by RefSeq, Jul 2008]

TGFBI Gene-Disease associations (from GenCC):

epithelial-stromal TGFBI dystrophy
Inheritance: AD Classification: DEFINITIVE Submitted by: Ambry Genetics
granular corneal dystrophy type I
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), G2P
granular corneal dystrophy type II
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P
lattice corneal dystrophy type I
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Orphanet
Reis-Bucklers corneal dystrophy
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P
Thiel-Behnke corneal dystrophy
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P
epithelial basement membrane dystrophy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

TGFBI links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

PM1

In a helix (size 9) in uniprot entity BGH3_HUMAN there are 4 pathogenic changes around while only 1 benign (80%) in NM_000358.3

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr5-136046406-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 7868.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

PP5

Variant 5-136046406-C-A is Pathogenic according to our data. Variant chr5-136046406-C-A is described in ClinVar as [Pathogenic]. Clinvar id is 7873.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TGFBI	NM_000358.3 link	c.370C>A	p.Arg124Ser	missense_variant	Exon 4 of 17	ENST00000442011.7	NP_000349.1	Q15582A0A0S2Z4Q2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TGFBI	ENST00000442011.7 link	c.370C>A	p.Arg124Ser	missense_variant	Exon 4 of 17	1	NM_000358.3	ENSP00000416330.2		Q15582

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000401

AC:

AN:

249098

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000556

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461632

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727096

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44708

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86248

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53402

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111832

Other (OTH)

AF:

0.00

AC:

AN:

60368

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Epithelial-stromal TGFBI dystrophy

Pathogenic:1

Sep 21, 2021

Genetics and Molecular Pathology, SA Pathology

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Groenouw corneal dystrophy type I

Pathogenic:1

Apr 01, 2002

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.46

BayesDel_addAF

Pathogenic

0.17

BayesDel_noAF

Pathogenic

0.18

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.51

Eigen

Benign

0.16

Eigen_PC

Uncertain

0.29

FATHMM_MKL

Uncertain

0.79

LIST_S2

Benign

0.84

M_CAP

Benign

0.067

MetaRNN

Uncertain

0.69

MetaSVM

Uncertain

0.20

MutationAssessor

Benign

1.4

PhyloP100

1.3

PrimateAI

Uncertain

0.59

PROVEAN

Benign

-1.6

REVEL

Pathogenic

0.65

Sift

Uncertain

0.023

Sift4G

Uncertain

0.039

Polyphen

0.27

Vest4

0.76

MutPred

0.43

Gain of phosphorylation at R124 (P = 0.0441);

MVP

0.93

MPC

0.32

ClinPred

0.82

GERP RS

4.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.77

gMVP

0.86

Mutation Taster

=2/98

disease causing (ClinVar)

(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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5-136046406-C-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over