9-127826641-G-A

Variant names:

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BA1

This summary comes from the ClinGen Evidence Repository: The NM_001114753.3: c.392C>T variant in ENG is a missense variant predicted to cause substitution of proline by leucine at amino acid 131 (p.Pro131Leu). The filtering allele frequency (the lower threshold of the 95% CI of 762/30612) of the c.392C>T variant in ENG is 0.02343 for South Asian chromosomes by gnomAD v2.1.1, which is higher than the ClinGen Hereditary Hemorrhagic Telangiectasia Variant Curation Expert Panel threshold (>0.01) for BA1, and therefore meets this criterion (BA1). The computational predictor REVEL gives a score of 0.315, which is neither above nor below the thresholds predicting a damaging or benign impact on ENG function. In summary, this variant meets the criteria to be classified as benign for autosomal dominant hereditary hemorrhagic telangiectasia based on the ACMG/AMP criteria applied, as specified by the ClinGen Hereditary Hemorrhagic Telangiectasia Variant Curation Expert Panel: BA1 (specification version 1.0.0; 1/4/2024). LINK:https://erepo.genome.network/evrepo/ui/classification/CA202695/MONDO:0008535/136

Frequency

Genomes: 𝑓 0.0019 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0027 ( 49 hom. )

Consequence

ENG
NM_001278138.2 5_prime_UTR_premature_start_codon_gain

Scores

Clinical Significance

Benign reviewed by expert panel U:1B:10

Conservation

PhyloP100: -0.0560

Variant links:

Genes affected

ENG (HGNC:3349): (endoglin) This gene encodes a homodimeric transmembrane protein which is a major glycoprotein of the vascular endothelium. This protein is a component of the transforming growth factor beta receptor complex and it binds to the beta1 and beta3 peptides with high affinity. Mutations in this gene cause hereditary hemorrhagic telangiectasia, also known as Osler-Rendu-Weber syndrome 1, an autosomal dominant multisystemic vascular dysplasia. This gene may also be involved in preeclampsia and several types of cancer. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2013]

ENG links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BA1

For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ENG	NM_001114753.3 link	c.392C>T	p.Pro131Leu	missense_variant	Exon 4 of 15	ENST00000373203.9	NP_001108225.1	P17813-1Q96CG0A0A024R878

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ENG	ENST00000373203.9 link	c.392C>T	p.Pro131Leu	missense_variant	Exon 4 of 15	1	NM_001114753.3	ENSP00000362299.4		P17813-1

Frequencies

GnomAD3 genomes

AF:

0.00193

AC:

294

AN:

152082

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00111

Gnomad ASJ

AF:

0.0127

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.0280

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.0158

Gnomad NFE

AF:

0.00112

Gnomad OTH

AF:

0.00479

GnomAD3 exomes

AF:

0.00461

AC:

1158

AN:

251006

Hom.:

AF XY:

0.00590

AC XY:

800

AN XY:

135674

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00145

Gnomad ASJ exome

AF:

0.0128

Gnomad EAS exome

AF:

0.000218

Gnomad SAS exome

AF:

0.0249

Gnomad FIN exome

AF:

0.000186

Gnomad NFE exome

AF:

0.00162

Gnomad OTH exome

AF:

0.00408

GnomAD4 exome

AF:

0.00274

AC:

4012

AN:

1461634

Hom.:

Cov.:

AF XY:

0.00345

AC XY:

2510

AN XY:

727110

show subpopulations

Gnomad4 AFR exome

AF:

0.000329

Gnomad4 AMR exome

AF:

0.00143

Gnomad4 ASJ exome

AF:

0.0129

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0253

Gnomad4 FIN exome

AF:

0.000263

Gnomad4 NFE exome

AF:

0.00100

Gnomad4 OTH exome

AF:

0.00412

GnomAD4 genome

AF:

0.00193

AC:

293

AN:

152200

Hom.:

Cov.:

AF XY:

0.00226

AC XY:

168

AN XY:

74412

show subpopulations

Gnomad4 AFR

AF:

0.000169

Gnomad4 AMR

AF:

0.00111

Gnomad4 ASJ

AF:

0.0127

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.0278

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00112

Gnomad4 OTH

AF:

0.00474

Alfa

AF:

0.00165

Hom.:

Bravo

AF:

0.00133

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.000778

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.00233

AC:

ExAC

AF:

0.00511

AC:

621

Asia WGS

AF:

0.00953

AC:

AN:

3478

EpiCase

AF:

0.00207

EpiControl

AF:

0.00231

ClinVar

Significance: Benign

Submissions summary: Uncertain:1Benign:10

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Telangiectasia, hereditary hemorrhagic, type 1

Benign:3

Mar 06, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Mar 15, 2024

ClinGen Hereditary Hemorrhagic Telangiectasia Variant Curation Expert Panel, ClinGen

Significance: Benign

Review Status: reviewed by expert panel

Collection Method: curation

The NM_001114753.3: c.392C>T variant in ENG is a missense variant predicted to cause substitution of proline by leucine at amino acid 131 (p.Pro131Leu). The filtering allele frequency (the lower threshold of the 95% CI of 762/30612) of the c.392C>T variant in ENG is 0.02343 for South Asian chromosomes by gnomAD v2.1.1, which is higher than the ClinGen Hereditary Hemorrhagic Telangiectasia Variant Curation Expert Panel threshold (>0.01) for BA1, and therefore meets this criterion (BA1). The computational predictor REVEL gives a score of 0.315, which is neither above nor below the thresholds predicting a damaging or benign impact on ENG function. In summary, this variant meets the criteria to be classified as benign for autosomal dominant hereditary hemorrhagic telangiectasia based on the ACMG/AMP criteria applied, as specified by the ClinGen Hereditary Hemorrhagic Telangiectasia Variant Curation Expert Panel: BA1 (specification version 1.0.0; 1/4/2024). -

Nov 01, 2023

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not specified

Benign:2

Aug 18, 2016

Genetic Services Laboratory, University of Chicago

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Feb 06, 2015

Eurofins Ntd Llc (ga)

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Benign:2

Jan 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

ENG: BP4, BS1, BS2 -

Aug 03, 2018

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 32560555, 28655553, 27535533, 27146957, 12673790, 15879500, 25637381, 23399955, 21158752, 24055113) -

Haemorrhagic telangiectasia 1

Uncertain:1

Jun 01, 2014

CSER _CC_NCGL, University of Washington

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: research

Low GERP score may suggest that this variant may belong in a lower pathogenicity class -

Galloway-Mowat syndrome 1

Benign:1

Broad Center for Mendelian Genomics, Broad Institute of MIT and Harvard

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: research

The heterozygous p.Pro131Leu variant in ENG has been identified in multiple individuals with haemorrhagic telangiectasia and individuals without haemorrhagic telangiectasia (PMID: 15879500, 21158752), and has been identified in >2% of South Asian chromosomes and 7 homozygotes by ExAC (http://gnomad.broadinstitute.org/). In summary, this variant meets criteria to be classified as benign for autosomal dominant haemorrhagic telangiectasia. -

Cardiovascular phenotype

Benign:1

Sep 04, 2015

Ambry Genetics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Hereditary hemorrhagic telangiectasia

Benign:1

Jan 30, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.073

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.31

CADD

Benign

2.8

DANN

Benign

0.60

DEOGEN2

Uncertain

0.48

T;.

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.091

LIST_S2

Benign

0.67

T;T

MetaRNN

Benign

0.0042

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.4

L;L

PrimateAI

Benign

0.22

PROVEAN

Uncertain

-2.6

D;D

REVEL

Uncertain

0.32

Sift

Benign

0.12

T;T

Sift4G

Benign

0.25

T;T

Polyphen

0.066

B;.

Vest4

0.11

MVP

0.96

MPC

0.22

ClinPred

0.020

GERP RS

-1.9

Varity_R

0.22

gMVP

0.16

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over