rs745795470

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM5PP3_Strong

The NM_207034.3(EDN3):​c.293C>A​(p.Thr98Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000958 in 1,461,878 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. T98M) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

EDN3
NM_207034.3 missense

Scores

11
5
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:3B:1

Conservation

PhyloP100: 5.92

Publications

2 publications found
Variant links:
Genes affected
EDN3 (HGNC:3178): (endothelin 3) The protein encoded by this gene is a member of the endothelin family. Endothelins are endothelium-derived vasoactive peptides involved in a variety of biological functions. The active form of this protein is a 21 amino acid peptide processed from the precursor protein. The active peptide is a ligand for endothelin receptor type B (EDNRB). The interaction of this endothelin with EDNRB is essential for development of neural crest-derived cell lineages, such as melanocytes and enteric neurons. Mutations in this gene and EDNRB have been associated with Hirschsprung disease (HSCR) and Waardenburg syndrome (WS), which are congenital disorders involving neural crest-derived cells. Altered expression of this gene is implicated in tumorigenesis. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Oct 2014]
EDN3 Gene-Disease associations (from GenCC):
  • Waardenburg syndrome
    Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
  • Waardenburg syndrome type 4B
    Inheritance: AR, AD, SD Classification: DEFINITIVE, STRONG, MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen, PanelApp Australia, G2P
  • Waardenburg-Shah syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Hirschsprung disease, susceptibility to, 4
    Inheritance: AD, Unknown Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM5
Other missense variant is known to change same aminoacid residue: Variant chr20-59301650-C-T is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 984392.Status of the report is criteria_provided_single_submitter, 1 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.956

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
EDN3NM_207034.3 linkc.293C>A p.Thr98Lys missense_variant Exon 2 of 5 ENST00000337938.7 NP_996917.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
EDN3ENST00000337938.7 linkc.293C>A p.Thr98Lys missense_variant Exon 2 of 5 1 NM_207034.3 ENSP00000337128.2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.0000199
AC:
5
AN:
251222
AF XY:
0.0000221
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000958
AC:
14
AN:
1461878
Hom.:
0
Cov.:
32
AF XY:
0.0000165
AC XY:
12
AN XY:
727242
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:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.000162
AC:
14
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53414
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1112006
Other (OTH)
AF:
0.00
AC:
0
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
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
Cov.:
33
Alfa
AF:
0.00
Hom.:
0
ExAC
AF:
0.0000330
AC:
4

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:3Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Waardenburg syndrome type 4B Pathogenic:2
Feb 17, 2023
Revvity Omics, Revvity
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Nov 01, 2016
Center for Human Genetics, Inc, Center for Human Genetics, Inc
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

EDN3-related disorder Pathogenic:1
Jan 08, 2024
PreventionGenetics, part of Exact Sciences
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:clinical testing

The EDN3 c.293C>A variant is predicted to result in the amino acid substitution p.Thr98Lys. This variant was reported in the homozygous or compound heterozygous states in four individuals with Waardenburg syndrome, with depigmentation noted in heterozygotes (Table S4, Pingault. 2010. PubMed ID: 20127975). This variant is reported in 0.016% of alleles in individuals of South Asian descent in gnomAD. A different substitution at this amino acid position (p.Thr98Met) has been reported as pathogenic (Mohseni. 2021. PubMed ID: 33713422; Kapoor. 2012. PubMed ID: 22876130). This variant is interpreted as pathogenic.

Hirschsprung disease, susceptibility to, 4 Benign:1
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign.

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.94
BayesDel_addAF
Pathogenic
0.22
D
BayesDel_noAF
Pathogenic
0.34
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.96
D;.;D;.;D;.
Eigen
Pathogenic
0.69
Eigen_PC
Pathogenic
0.67
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.0
.;D;D;D;T;T
M_CAP
Pathogenic
0.35
D
MetaRNN
Pathogenic
0.96
D;D;D;D;D;D
MetaSVM
Pathogenic
0.84
D
MutationAssessor
Benign
1.7
L;L;L;.;.;L
PhyloP100
5.9
PrimateAI
Uncertain
0.68
T
PROVEAN
Uncertain
-4.2
D;D;D;.;D;D
REVEL
Pathogenic
0.92
Sift
Uncertain
0.0010
D;D;D;.;D;D
Sift4G
Uncertain
0.0030
D;D;D;.;D;D
Vest4
0.73
ClinPred
0.98
D
GERP RS
4.8
PromoterAI
0.13
Neutral
Varity_R
0.91
gMVP
0.89
Mutation Taster
=0/100
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

Publications

Other links and lift over

dbSNP: rs745795470; hg19: chr20-57876705; API