9-127826659-A-T

Variant names:

• chr9-127826659-A-T
• rs750115837
• NM_001114753.3:c.374T>A

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2 PP3_Moderate PP5

The NM_001114753.3(ENG):​c.374T>A​(p.Val125Asp) 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 pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V125A) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: ENG NM_001114753.3 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1 U:1
• Conservation: PhyloP100: 1.38
• Publications: 3 publications found

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 Gene-Disease associations (from GenCC):

• telangiectasia, hereditary hemorrhagic, type 1

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp
• hereditary hemorrhagic telangiectasia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• juvenile polyposis syndrome

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.901
• PP5: Variant 9-127826659-A-T is Pathogenic according to our data. Variant chr9-127826659-A-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 429941.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001114753.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ENG	NM_001114753.3	MANE Select	c.374T>A	p.Val125Asp	missense	Exon 4 of 15	NP_001108225.1	P17813-1
	ENG	NM_000118.4		c.374T>A	p.Val125Asp	missense	Exon 4 of 14	NP_000109.1	Q5T9B9
	ENG	NM_001406715.1		c.374T>A	p.Val125Asp	missense	Exon 4 of 8	NP_001393644.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ENG	ENST00000373203.9	TSL:1 MANE Select	c.374T>A	p.Val125Asp	missense	Exon 4 of 15	ENSP00000362299.4	P17813-1
	ENG	ENST00000344849.5	TSL:1	c.374T>A	p.Val125Asp	missense	Exon 4 of 14	ENSP00000341917.3	P17813-2
	ENG	ENST00000714047.1		c.374T>A	p.Val125Asp	missense	Exon 4 of 15	ENSP00000519338.1	A0AAQ5BHC4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	1	-	Hereditary hemorrhagic telangiectasia (1)
1	-	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.77
BayesDel_addAF	Pathogenic	0.22	D
BayesDel_noAF	Uncertain	0.080
CADD	Benign	17
DANN	Benign	0.96
DEOGEN2	Uncertain	0.55	D
Eigen	Benign	-0.16
Eigen_PC	Benign	-0.24
FATHMM_MKL	Benign	0.26	N
LIST_S2	Benign	0.73	T
M_CAP	Benign	0.048	D
MetaRNN	Pathogenic	0.90	D
MetaSVM	Benign	-0.88	T
MutationAssessor	Uncertain	2.1	M
PhyloP100		1.4
PrimateAI	Benign	0.40	T
PROVEAN	Uncertain	-3.6	D
REVEL	Uncertain	0.33
Sift	Uncertain	0.010	D
Sift4G	Uncertain	0.0050	D
Polyphen		0.73	P
Vest4		0.86
MutPred		0.63		Gain of disorder (P = 0.0099)
MVP		0.97
MPC		0.82
ClinPred		0.92	D
GERP RS		4.0
Varity_R		0.87
gMVP		0.78
Mutation Taster		=5/95	disease causing (ClinVar)

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: rs750115837; hg19: chr9-130588938;