chr20-59321123-C-T

Position:

• chr20-59321123-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1 PM2 PP3_Strong

The NM_207034.3(EDN3):​c.472C>T​(p.Arg158Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000041 in 1,461,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000041 (0 hom.)
• Consequence: EDN3 NM_207034.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.96

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]

ACMG classification

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

• PM1: In a propeptide (size 120) in uniprot entity EDN3_HUMAN there are 8 pathogenic changes around while only 1 benign (89%) in NM_207034.3
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.963

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
EDN3	NM_207034.3	c.472C>T	p.Arg158Cys	missense_variant	3/5	ENST00000337938.7	NP_996917.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
EDN3	ENST00000337938.7	c.472C>T	p.Arg158Cys	missense_variant	3/5	1	NM_207034.3	ENSP00000337128	A2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000410 AC: 6 AN: 1461890 Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4 AN XY: 727248

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: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000450

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

Alfa AF: 0.0000189 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.88
BayesDel_addAF	Pathogenic	0.37	D
BayesDel_noAF	Pathogenic	0.29
CADD	Pathogenic	27
DANN	Pathogenic	1.0
DEOGEN2	Pathogenic	0.94	D;.;D;.;D;.
Eigen	Uncertain	0.43
Eigen_PC	Uncertain	0.33
FATHMM_MKL	Uncertain	0.78	D
LIST_S2	Benign	0.81	.;T;T;T;T;T
M_CAP	Pathogenic	0.29	D
MetaRNN	Pathogenic	0.96	D;D;D;D;D;D
MetaSVM	Uncertain	0.51	D
MutationAssessor	Benign	1.5	L;L;L;.;.;L
MutationTaster	Benign	1.0	D;D;D;D;D
PrimateAI	Benign	0.44	T
PROVEAN	Pathogenic	-7.3	D;D;D;.;D;D
REVEL	Pathogenic	0.68
Sift	Pathogenic	0.0	D;D;D;.;D;D
Sift4G	Pathogenic	0.0	D;D;D;.;D;D
Polyphen		1.0	D;.;D;.;D;D
Vest4		0.89
MVP		0.96
MPC		0.71
ClinPred		1.0	D
GERP RS		3.9
Varity_R		0.77
gMVP		0.82

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

LitVar

Other links and lift over

dbSNP: rs753482233; hg19: chr20-57896178;