NM_001114753.3:c.722G>A

Variant names:

• chr9-127825325-C-T
• rs1060501411
• NM_001114753.3:c.722G>A

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 2P and 8B. PM1 BP4_Moderate BP6_Moderate BS2

The NM_001114753.3(ENG):​c.722G>A​(p.Ser241Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,082 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. S241S) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 26)
  • Exomes 𝑓: 0.0000048 (0 hom.)
• Consequence: ENG NM_001114753.3 missense
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.251
• Publications: 0 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

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• PM1: In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 4 benign, 10 uncertain in NM_001114753.3
• BP4: Computational evidence support a benign effect (MetaRNN=0.21259317).
• BP6: Variant 9-127825325-C-T is Benign according to our data. Variant chr9-127825325-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 407116.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS2: High AC in GnomAdExome4 at 7 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ENG	NM_001114753.3	c.722G>A	p.Ser241Asn	missense_variant	Exon 6 of 15	ENST00000373203.9	NP_001108225.1
ENG	NM_000118.4	c.722G>A	p.Ser241Asn	missense_variant	Exon 6 of 14		NP_000109.1
ENG	NM_001278138.2	c.176G>A	p.Ser59Asn	missense_variant	Exon 6 of 15		NP_001265067.1
ENG	NM_001406715.1	c.722G>A	p.Ser241Asn	missense_variant	Exon 6 of 8		NP_001393644.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ENG	ENST00000373203.9	c.722G>A	p.Ser241Asn	missense_variant	Exon 6 of 15	1	NM_001114753.3	ENSP00000362299.4

Frequencies

GnomAD3 genomes Cov.: 26

GnomAD2 exomes AF: 0.0000200 AC: 5 AN: 249874 AF XY: 0.0000222

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000868

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000164

GnomAD4 exome AF: 0.00000479 AC: 7 AN: 1461082 Hom.: 0 Cov.: 33 AF XY: 0.00000550 AC XY: 4 AN XY: 726830

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.000134 AC: 6 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52630

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112002

Other (OTH) AF: 0.00 AC: 0 AN: 60388

GnomAD4 genome Cov.: 26

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Hereditary hemorrhagic telangiectasia Benign:1

Oct 30, 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
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.46	T
BayesDel_noAF	Benign	-0.71
CADD	Benign	19
DANN	Benign	0.94
DEOGEN2	Benign	0.36	T;T;.
Eigen	Benign	-0.88
Eigen_PC	Benign	-0.87
FATHMM_MKL	Benign	0.45	N
LIST_S2	Benign	0.62	T;T;T
M_CAP	Benign	0.015	T
MetaRNN	Benign	0.21	T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.4	L;.;L
PhyloP100		0.25
PrimateAI	Benign	0.43	T
PROVEAN	Benign	-0.84	N;.;N
REVEL	Benign	0.044
Sift	Benign	0.33	T;.;T
Sift4G	Benign	0.21	T;T;T
Polyphen		0.0060	B;.;.
Vest4		0.18
MutPred		0.43		Loss of glycosylation at S241 (P = 0.057);.;Loss of glycosylation at S241 (P = 0.057);
MVP		0.39
MPC		0.22
ClinPred		0.050	T
GERP RS		0.58
Varity_R		0.17
gMVP		0.46
Mutation Taster		=94/6	polymorphism

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: rs1060501411; hg19: chr9-130587604;