9-127817814-T-G

Variant names:

• chr9-127817814-T-G
• rs10987746
• NM_001114753.3:c.1686+306A>C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001114753.3(ENG):​c.1686+306A>C variant causes a intron 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.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: ENG NM_001114753.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -3.33
• Publications: 15 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: Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp, ClinGen
• hereditary hemorrhagic telangiectasia

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

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen

ENSG00000225032 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.93).

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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ENG	NM_001114753.3	MANE Select	c.1686+306A>C		intron	N/A	NP_001108225.1
	LOC102723566	NR_136302.1		n.1334T>G		non_coding_transcript_exon	Exon 2 of 6
	ENG	NM_000118.4		c.1686+306A>C		intron	N/A	NP_000109.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ENG	ENST00000373203.9	TSL:1 MANE Select	c.1686+306A>C		intron	N/A	ENSP00000362299.4
	ENG	ENST00000344849.5	TSL:1	c.1686+306A>C		intron	N/A	ENSP00000341917.3
	ENSG00000225032	ENST00000439298.5	TSL:2	n.1334T>G		non_coding_transcript_exon	Exon 2 of 6

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 363182 Hom.: 0 Cov.: 3 AF XY: 0.00 AC XY: 0 AN XY: 190358

African (AFR) AF: 0.00 AC: 0 AN: 10678

American (AMR) AF: 0.00 AC: 0 AN: 15848

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 11246

East Asian (EAS) AF: 0.00 AC: 0 AN: 23758

South Asian (SAS) AF: 0.00 AC: 0 AN: 43664

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 21496

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 1580

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 213918

Other (OTH) AF: 0.00 AC: 0 AN: 20994

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.93
CADD	Benign	0.18
DANN	Benign	0.42
PhyloP100		-3.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs10987746; hg19: chr9-130580093;