Genetic Variant ENG:p.Pro340Pro (chr9-127824418-C-T) – ACMG Classification: Benign (-11 pts)

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_StrongBP6_ModerateBP7BS2

The NM_001114753.3(ENG):c.1020G>A(p.Pro340Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00002 in 1,602,802 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

ENG
NM_001114753.3 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: -4.72

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:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.73).

BP6

Variant 9-127824418-C-T is Benign according to our data. Variant chr9-127824418-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 414308.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-4.72 with no splicing effect.

BS2

High AC in GnomAdExome4 at 28 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ENG	NM_001114753.3 link	c.1020G>A	p.Pro340Pro	synonymous_variant	Exon 8 of 15	ENST00000373203.9	NP_001108225.1	P17813-1Q96CG0A0A024R878
ENG	NM_000118.4 link	c.1020G>A	p.Pro340Pro	synonymous_variant	Exon 8 of 14		NP_000109.1	P17813-2Q5T9B9
ENG	NM_001278138.2 link	c.474G>A	p.Pro158Pro	synonymous_variant	Exon 8 of 15		NP_001265067.1	P17813Q96CG0F5GX88B7Z6Y5
ENG	NM_001406715.1 link	c.1020G>A	p.Pro340Pro	synonymous_variant	Exon 8 of 8		NP_001393644.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ENG	ENST00000373203.9 link	c.1020G>A	p.Pro340Pro	synonymous_variant	Exon 8 of 15	1	NM_001114753.3	ENSP00000362299.4	P17813-1
ENG	ENST00000344849.4 link	c.1020G>A	p.Pro340Pro	synonymous_variant	Exon 8 of 14	1		ENSP00000341917.3	P17813-2
ENG	ENST00000480266.6 link	c.474G>A	p.Pro158Pro	synonymous_variant	Exon 8 of 15	2		ENSP00000479015.1	F5GX88
ENG	ENST00000486329.1 link	n.-13G>A		upstream_gene_variant		2

Frequencies

GnomAD3 genomes

AF:

0.0000267

AC:

AN:

149806

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000667

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:

0.0000444

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000193

AC:

AN:

1452996

Hom.:

Cov.:

AF XY:

0.0000221

AC XY:

AN XY:

722830

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000226

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000267

AC:

AN:

149806

Hom.:

Cov.:

AF XY:

0.0000274

AC XY:

AN XY:

73058

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000667

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000444

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

ENG-related disorder

Benign:1

Apr 05, 2024

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Hereditary hemorrhagic telangiectasia

Benign:1

Feb 26, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.73

CADD

Benign

4.7

DANN

Benign

0.87

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.10

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