chr9-127818214-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_001114753.3(ENG):​c.1592G>A​(p.Ser531Asn) 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 1,461,864 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. S531S) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

ENG
NM_001114753.3 missense

Scores

8
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.96
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High AC in GnomAdExome4 at 7 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ENGNM_001114753.3 linkc.1592G>A p.Ser531Asn missense_variant Exon 12 of 15 ENST00000373203.9 NP_001108225.1 P17813-1Q96CG0A0A024R878
ENGNM_000118.4 linkc.1592G>A p.Ser531Asn missense_variant Exon 12 of 14 NP_000109.1 P17813-2Q5T9B9
ENGNM_001278138.2 linkc.1046G>A p.Ser349Asn missense_variant Exon 12 of 15 NP_001265067.1 P17813Q96CG0F5GX88B7Z6Y5
LOC102723566NR_136302.1 linkn.1378-97C>T intron_variant Intron 2 of 5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ENGENST00000373203.9 linkc.1592G>A p.Ser531Asn missense_variant Exon 12 of 15 1 NM_001114753.3 ENSP00000362299.4 P17813-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251286
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135874
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1461864
Hom.:
0
Cov.:
31
AF XY:
0.00000825
AC XY:
6
AN XY:
727234
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.000111
Hom.:
0
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Hereditary hemorrhagic telangiectasia Uncertain:1
Jan 13, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces serine, which is neutral and polar, with asparagine, which is neutral and polar, at codon 531 of the ENG protein (p.Ser531Asn). This variant is present in population databases (rs780884220, gnomAD 0.0009%). 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: 458339). 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: "Tolerated"; PolyPhen-2: "Possibly 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.39
BayesDel_addAF
Benign
-0.023
T
BayesDel_noAF
Benign
-0.27
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.76
D;D;.
Eigen
Uncertain
0.26
Eigen_PC
Benign
0.21
FATHMM_MKL
Benign
0.62
D
LIST_S2
Benign
0.77
T;T;T
M_CAP
Benign
0.065
D
MetaRNN
Uncertain
0.54
D;D;D
MetaSVM
Uncertain
-0.021
T
MutationAssessor
Benign
1.5
L;.;L
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-2.0
N;.;N
REVEL
Uncertain
0.46
Sift
Benign
0.036
D;.;D
Sift4G
Uncertain
0.060
T;D;T
Polyphen
1.0
D;.;.
Vest4
0.34
MutPred
0.73
Loss of sheet (P = 0.0315);.;Loss of sheet (P = 0.0315);
MVP
0.83
MPC
0.48
ClinPred
0.53
D
GERP RS
4.2
Varity_R
0.40
gMVP
0.72

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.18
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs780884220; hg19: chr9-130580493; API