rs138190783

Positions:

• chr9-127824371-A-C
• chr9-127824371-A-G
• chr9-127824371-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001114753.3(ENG):​c.1067T>G​(p.Met356Arg) variant causes a missense 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. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 30)
• Consequence: ENG NM_001114753.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.948

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 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.16805801).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ENG	NM_001114753.3	c.1067T>G	p.Met356Arg	missense_variant	8/15	ENST00000373203.9	NP_001108225.1
ENG	NM_000118.4	c.1067T>G	p.Met356Arg	missense_variant	8/14		NP_000109.1
ENG	NM_001278138.2	c.521T>G	p.Met174Arg	missense_variant	8/15		NP_001265067.1
ENG	NM_001406715.1	c.1067T>G	p.Met356Arg	missense_variant	8/8		NP_001393644.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ENG	ENST00000373203.9	c.1067T>G	p.Met356Arg	missense_variant	8/15	1	NM_001114753.3	ENSP00000362299.4
ENG	ENST00000344849.4	c.1067T>G	p.Met356Arg	missense_variant	8/14	1		ENSP00000341917.3
ENG	ENST00000480266.6	c.521T>G	p.Met174Arg	missense_variant	8/15	2		ENSP00000479015.1
ENG	ENST00000486329.1	n.35T>G		non_coding_transcript_exon_variant	1/3	2

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 30

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Hereditary hemorrhagic telangiectasia Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 02, 2021

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt ENG protein function. This variant has not been reported in the literature in individuals affected with ENG-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces methionine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 356 of the ENG protein (p.Met356Arg). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.39
BayesDel_addAF	Benign	-0.15	T
BayesDel_noAF	Benign	-0.45
CADD	Benign	18
DANN	Benign	0.92
DEOGEN2	Uncertain	0.42	T;T;.
Eigen	Benign	-0.11
Eigen_PC	Benign	-0.11
FATHMM_MKL	Benign	0.31	N
LIST_S2	Benign	0.61	T;T;T
M_CAP	Benign	0.016	T
MetaRNN	Benign	0.17	T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.6	L;.;L
PrimateAI	Benign	0.41	T
PROVEAN	Benign	-2.0	N;.;N
REVEL	Benign	0.056
Sift	Benign	0.091	T;.;T
Sift4G	Benign	0.062	T;T;T
Polyphen		0.63	P;.;.
Vest4		0.19
MutPred		0.26		Gain of catalytic residue at M356 (P = 0.0704);.;Gain of catalytic residue at M356 (P = 0.0704);
MVP		0.46
MPC		0.33
ClinPred		0.25	T
GERP RS		2.1
Varity_R		0.43
gMVP		0.77

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr9-130586650;