rs201846162

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBS1_Supporting

The NM_014297.5(ETHE1):c.427G>A(p.Val143Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000508 in 1,614,130 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000053 ( 0 hom. )

Consequence

ETHE1
NM_014297.5 missense

Scores

Clinical Significance

Uncertain significance reviewed by expert panel U:3

Conservation

PhyloP100: 3.66

Variant links:

Genes affected

ETHE1 (HGNC:23287): (ETHE1 persulfide dioxygenase) This gene encodes a member of the metallo beta-lactamase family of iron-containing proteins involved in the mitochondrial sulfide oxidation pathway. The encoded protein catalyzes the oxidation of a persulfide substrate to sulfite. Certain mutations in this gene cause ethylmalonic encephalopathy, an infantile metabolic disorder affecting the brain, gastrointestinal tract and peripheral vessels. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Mar 2016]

ETHE1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.14422977).

BS1

Variant frequency is greater than expected in population eas. gnomad4_exome allele frequency = 0.0000527 (77/1461858) while in subpopulation EAS AF= 0.000756 (30/39698). AF 95% confidence interval is 0.000543. There are 0 homozygotes in gnomad4_exome. There are 35 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ETHE1	NM_014297.5 link	c.427G>A	p.Val143Ile	missense_variant	Exon 4 of 7	ENST00000292147.7	NP_055112.2	O95571A0A0S2Z5B3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ETHE1	ENST00000292147.7 link	c.427G>A	p.Val143Ile	missense_variant	Exon 4 of 7	1	NM_014297.5	ENSP00000292147.1		O95571

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000835

AC:

AN:

251368

Hom.:

AF XY:

0.0000442

AC XY:

AN XY:

135878

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000653

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000704

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000527

AC:

AN:

1461858

Hom.:

Cov.:

AF XY:

0.0000481

AC XY:

AN XY:

727228

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000756

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000351

Gnomad4 OTH exome

AF:

0.0000994

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152272

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74456

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000814

Hom.:

Bravo

AF:

0.0000302

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000906

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Ethylmalonic encephalopathy

Uncertain:3

Oct 28, 2019

Natera, Inc.

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Aug 09, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 143 of the ETHE1 protein (p.Val143Ile). This variant is present in population databases (rs201846162, gnomAD 0.06%). This variant has not been reported in the literature in individuals affected with ETHE1-related conditions. ClinVar contains an entry for this variant (Variation ID: 468478). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt ETHE1 protein function. 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. -

Aug 18, 2020

ClinGen Mitochondrial Disease Nuclear and Mitochondrial Variant Curation Expert Panel, ClinGen

Significance: Uncertain significance

Review Status: reviewed by expert panel

Collection Method: curation

This variant was classified as a variant of uncertain significance as there has not been sufficient evidence to support either a benign or a pathogenic classification. Specifically, this variant has not been reported in the literature in affected or unaffected patients, has no published functional data. This variant is present in population databases with an allele frequency of 0.09%, which is higher allele frequency expected for a pathogenic variant in ETHE1 (BS1). However, not enough criteria were met to support a pathogenic or benign classification. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.19

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.49

T;.

Eigen

Benign

0.16

Eigen_PC

Benign

0.18

FATHMM_MKL

Uncertain

0.90

LIST_S2

Benign

0.84

T;T

M_CAP

Uncertain

0.089

MetaRNN

Benign

0.14

T;T

MetaSVM

Pathogenic

0.87

MutationAssessor

Benign

1.7

L;.

PrimateAI

Uncertain

0.77

PROVEAN

Benign

-0.83

N;.

REVEL

Uncertain

0.49

Sift

Benign

0.036

D;.

Sift4G

Benign

0.072

T;T

Polyphen

0.97

D;.

Vest4

0.23

MVP

0.86

MPC

0.74

ClinPred

0.11

GERP RS

3.9

Varity_R

0.30

gMVP

0.51

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

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over