5-136029122-G-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_000358.3(TGFBI):c.67G>T(p.Ala23Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000446 in 1,525,258 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

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

Exomes 𝑓: 0.000047 ( 0 hom. )

Consequence

TGFBI
NM_000358.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.726

Publications

0 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_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.13210422).

BS2

High AC in GnomAdExome4 at 64 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TGFBI	NM_000358.3 link	c.67G>T	p.Ala23Ser	missense_variant	Exon 1 of 17	ENST00000442011.7	NP_000349.1	Q15582A0A0S2Z4Q2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TGFBI	ENST00000442011.7 link	c.67G>T	p.Ala23Ser	missense_variant	Exon 1 of 17	1	NM_000358.3	ENSP00000416330.2	Q15582
TGFBI	ENST00000504185.5 link	n.135G>T		non_coding_transcript_exon_variant	Exon 1 of 5	4
TGFBI	ENST00000506699.5 link	n.132G>T		non_coding_transcript_exon_variant	Exon 1 of 17	2
TGFBI	ENST00000507018.5 link	n.-18G>T		upstream_gene_variant		5		ENSP00000421540.1	H0Y8M8

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152180

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000332

AC:

AN:

120332

AF XY:

0.0000301

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000895

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000466

AC:

AN:

1373078

Hom.:

Cov.:

AF XY:

0.0000531

AC XY:

AN XY:

677574

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

29638

American (AMR)

AF:

0.00

AC:

AN:

35222

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24716

East Asian (EAS)

AF:

0.00

AC:

AN:

34574

South Asian (SAS)

AF:

0.00

AC:

AN:

78144

European-Finnish (FIN)

AF:

0.0000294

AC:

AN:

34042

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4120

European-Non Finnish (NFE)

AF:

0.0000577

AC:

AN:

1075236

Other (OTH)

AF:

0.0000174

AC:

AN:

57386

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.510

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152180

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74342

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41462

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5162

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10630

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68014

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.463

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000869

Hom.:

Bravo

AF:

0.0000302

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Jun 12, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.67G>T (p.A23S) alteration is located in exon 1 (coding exon 1) of the TGFBI gene. This alteration results from a G to T substitution at nucleotide position 67, causing the alanine (A) at amino acid position 23 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.089

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.30

CADD

Benign

(source)

DANN

Benign

0.91

DEOGEN2

Benign

0.20

Eigen

Benign

-0.88

Eigen_PC

Benign

-0.80

FATHMM_MKL

Benign

0.092

LIST_S2

Benign

0.54

M_CAP

Pathogenic

0.63

MetaRNN

Benign

0.13

MetaSVM

Benign

-0.59

MutationAssessor

Benign

0.0

PhyloP100

0.73

PrimateAI

Pathogenic

0.85

PROVEAN

Benign

0.27

REVEL

Benign

0.14

Sift

Benign

0.48

Sift4G

Benign

0.19

Polyphen

0.0080

Vest4

0.13

MutPred

0.23

Gain of glycosylation at A23 (P = 0.0049);

MVP

0.76

MPC

0.096

ClinPred

0.020

GERP RS

1.2

PromoterAI

0.030

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.046

gMVP

0.39

Mutation Taster

=82/18

polymorphism

(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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

5-136029122-G-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over