rs139767471

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM1BP6BS2

The NM_001114753.3(ENG):​c.698C>T​(p.Thr233Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000155 in 1,610,338 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. T233T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000067 ( 0 hom., cov: 26)
Exomes 𝑓: 0.000016 ( 1 hom. )

Consequence

ENG
NM_001114753.3 missense

Scores

12
7

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 1.74

Publications

0 publications found
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 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 7 benign, 16 uncertain in NM_001114753.3
BP6
Variant 9-127825349-G-A is Benign according to our data. Variant chr9-127825349-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 528053.
BS2
High AC in GnomAdExome4 at 24 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ENGNM_001114753.3 linkc.698C>T p.Thr233Met missense_variant Exon 6 of 15 ENST00000373203.9 NP_001108225.1
ENGNM_000118.4 linkc.698C>T p.Thr233Met missense_variant Exon 6 of 14 NP_000109.1
ENGNM_001278138.2 linkc.152C>T p.Thr51Met missense_variant Exon 6 of 15 NP_001265067.1
ENGNM_001406715.1 linkc.698C>T p.Thr233Met missense_variant Exon 6 of 8 NP_001393644.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ENGENST00000373203.9 linkc.698C>T p.Thr233Met missense_variant Exon 6 of 15 1 NM_001114753.3 ENSP00000362299.4

Frequencies

GnomAD3 genomes
AF:
0.00000667
AC:
1
AN:
149926
Hom.:
0
Cov.:
26
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000675
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000281
AC:
7
AN:
248928
AF XY:
0.0000222
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000444
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000164
AC:
24
AN:
1460412
Hom.:
1
Cov.:
33
AF XY:
0.0000206
AC XY:
15
AN XY:
726508
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.0000464
AC:
4
AN:
86252
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52012
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5742
European-Non Finnish (NFE)
AF:
0.0000144
AC:
16
AN:
1111990
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60378
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.477
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000667
AC:
1
AN:
149926
Hom.:
0
Cov.:
26
AF XY:
0.00
AC XY:
0
AN XY:
72978
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
40624
American (AMR)
AF:
0.0000675
AC:
1
AN:
14824
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3458
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5102
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4648
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10392
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67612
Other (OTH)
AF:
0.00
AC:
0
AN:
2040
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000308
Hom.:
0
Bravo
AF:
0.0000113
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000247
AC:
3

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Hereditary hemorrhagic telangiectasia Uncertain:1
Dec 21, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces threonine, which is neutral and polar, with methionine, which is neutral and non-polar, at codon 233 of the ENG protein (p.Thr233Met). This variant is present in population databases (rs139767471, gnomAD 0.005%). This variant has not been reported in the literature in individuals affected with ENG-related conditions. ClinVar contains an entry for this variant (Variation ID: 528053). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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. -

Cardiovascular phenotype Benign:1
Nov 15, 2024
Ambry Genetics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.36
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.51
D;T;.
Eigen
Uncertain
0.42
Eigen_PC
Uncertain
0.32
FATHMM_MKL
Benign
0.37
N
LIST_S2
Uncertain
0.87
D;D;D
M_CAP
Uncertain
0.11
D
MetaRNN
Uncertain
0.42
T;T;T
MetaSVM
Benign
-0.79
T
MutationAssessor
Uncertain
2.3
M;.;M
PhyloP100
1.7
PrimateAI
Uncertain
0.52
T
PROVEAN
Uncertain
-2.9
D;.;D
REVEL
Benign
0.19
Sift
Uncertain
0.0080
D;.;D
Sift4G
Uncertain
0.0080
D;D;D
Polyphen
1.0
D;.;.
Vest4
0.51
MVP
0.66
MPC
0.81
ClinPred
0.80
D
GERP RS
4.8
Varity_R
0.11
gMVP
0.54
Mutation Taster
=55/45
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

Publications

Other links and lift over

dbSNP: rs139767471; hg19: chr9-130587628; API