20-59300871-G-A

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_207034.3(EDN3):​c.52+7G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000559 in 1,610,092 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

EDN3
NM_207034.3 splice_region, intron

Scores

2
Splicing: ADA: 0.0001859
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.653

Publications

0 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_benign. The variant received -4 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.6).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
EDN3NM_207034.3 linkc.52+7G>A splice_region_variant, intron_variant Intron 1 of 4 ENST00000337938.7 NP_996917.1 P14138-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
EDN3ENST00000337938.7 linkc.52+7G>A splice_region_variant, intron_variant Intron 1 of 4 1 NM_207034.3 ENSP00000337128.2 P14138-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152244
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00000422
AC:
1
AN:
236774
AF XY:
0.00000766
show subpopulations
Gnomad AFR exome
AF:
0.0000719
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:
0.00000412
AC:
6
AN:
1457730
Hom.:
0
Cov.:
31
AF XY:
0.00000276
AC XY:
2
AN XY:
725272
show subpopulations
African (AFR)
AF:
0.000120
AC:
4
AN:
33426
American (AMR)
AF:
0.00
AC:
0
AN:
44616
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26048
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39666
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86110
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51112
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5256
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111352
Other (OTH)
AF:
0.0000333
AC:
2
AN:
60144
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.408
Heterozygous variant carriers
0
1
1
2
2
3
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
AF:
0.0000197
AC:
3
AN:
152362
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74504
show subpopulations
African (AFR)
AF:
0.0000721
AC:
3
AN:
41596
American (AMR)
AF:
0.00
AC:
0
AN:
15310
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10632
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
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:
0.00
Hom.:
0
Bravo
AF:
0.0000113
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

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

Submissions by phenotype

Waardenburg syndrome Uncertain:1
Jan 14, 2025
Center for Statistical Genetics, Columbia University
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:research

The variant c.52+7G>A is a splice variant. We identified this heterozygous variant segerating in multiple affected with Waardenburg syndrome. The variant was classified based on the ACMG/AMP criteria, using the evidences PP1 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.60
CADD
Benign
11
DANN
Benign
0.96
PhyloP100
0.65
PromoterAI
0.046
Neutral

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00019
dbscSNV1_RF
Benign
0.016
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: rs565272361; hg19: chr20-57875926; API