rs1442

Variant names:

• chr5-136047300-G-A
• rs1442
• NM_000358.3:c.651G>A

Your query was ambiguous. Multiple possible variants found:

• chr5-136047300-G-A
• chr5-136047300-G-C
• chr5-136047300-G-T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_000358.3(TGFBI):​c.651G>A​(p.Leu217Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. L217L) has been classified as Benign.

• Frequency:
  • Genomes: 𝑓 0.0 (0 hom., cov: 31)
  • Failed GnomAD Quality Control
• Consequence: TGFBI NM_000358.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.310
• Publications: 37 publications found

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

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.5).
• BP7: Synonymous conserved (PhyloP=-0.31 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000358.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TGFBI	NM_000358.3	MANE Select	c.651G>A	p.Leu217Leu	synonymous	Exon 6 of 17	NP_000349.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TGFBI	ENST00000442011.7	TSL:1 MANE Select	c.651G>A	p.Leu217Leu	synonymous	Exon 6 of 17	ENSP00000416330.2
	TGFBI	ENST00000506699.5	TSL:2	n.1071G>A		non_coding_transcript_exon	Exon 5 of 17
	TGFBI	ENST00000507018.5	TSL:5	n.*244G>A		non_coding_transcript_exon	Exon 6 of 17	ENSP00000421540.1

Frequencies

GnomAD3 genomes AF: 0.00 AC: 0 AN: 151848 Hom.: 0 Cov.: 31

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: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 60

GnomAD4 genome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 151848 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 74120

African (AFR) AF: 0.00 AC: 0 AN: 41352

American (AMR) AF: 0.00 AC: 0 AN: 15252

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5140

South Asian (SAS) AF: 0.00 AC: 0 AN: 4818

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10536

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 314

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67972

Other (OTH) AF: 0.00 AC: 0 AN: 2088

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.50
CADD	Benign	8.8
DANN	Benign	0.72
PhyloP100		-0.31
PromoterAI		-0.0082	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

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

Other links and lift over

dbSNP: rs1442; hg19: chr5-135382989;