Variant 6-127316477-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP5_Moderate

The NM_001002030.2(ECHDC1):c.389T>C(p.Met130Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000423 in 1,606,906 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★).

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

ECHDC1
NM_001002030.2 missense

Scores

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 6.05

Variant links:

Genes affected

ECHDC1 (HGNC:21489): (ethylmalonyl-CoA decarboxylase 1) Predicted to enable carboxy-lyase activity and enoyl-CoA hydratase activity. Predicted to be involved in fatty acid beta-oxidation. Predicted to be integral component of membrane. Predicted to be active in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

ECHDC1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 6-127316477-A-G is Pathogenic according to our data. Variant chr6-127316477-A-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 978063.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ECHDC1	NM_001002030.2 link	c.389T>C	p.Met130Thr	missense_variant	4/6	ENST00000454859.8	NP_001002030.1	Q9NTX5-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ECHDC1	ENST00000454859.8 link	c.389T>C	p.Met130Thr	missense_variant	4/6	1	NM_001002030.2	ENSP00000401751.3		Q9NTX5-2

Frequencies

GnomAD3 genomes

AF:

0.0000986

AC:

AN:

152128

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000852

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000735

AC:

AN:

244914

Hom.:

AF XY:

0.0000452

AC XY:

AN XY:

132788

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000328

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:

0.0000447

Gnomad OTH exome

AF:

0.000337

GnomAD4 exome

AF:

0.0000364

AC:

AN:

1454660

Hom.:

Cov.:

AF XY:

0.0000346

AC XY:

AN XY:

723378

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000457

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:

0.0000225

Gnomad4 OTH exome

AF:

0.000117

GnomAD4 genome

AF:

0.0000985

AC:

AN:

152246

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

74454

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000851

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000174

Hom.:

Bravo

AF:

0.000223

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000123

AC:

ExAC

AF:

0.000108

AC:

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Deficiency of butyryl-CoA dehydrogenase

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

research

Research Unit for Molecular Medicine, Department for Clinical Medicine, Aarhus University

Sep 12, 2019

ECHDC1 encodes a 'metabolite repair enzyme' detoxifying ethylmalonic acid (EMA), which is the biochemical hallmark of short-chain acyl-CoA dehydrogenase deficiency (OMIM:201470), caused by biallelic ACADS variants. We provide functional evidence that ECHDC1 c.389T>C is a loss-of function (LOF) variant. The variant was identified in the heterozygous state together with the homozygous ACADS NM_000017.2 c.625G>A susceptibility variant. We provide functional evidence that ECHDC1 haploinsufficiency in combination with ACADS c.625G>A susceptibility variants has a synergistic effect on cellular EMA levels. In a cohort of 82 genetically unsolved EMA patients, we found three unrelated cases with heterozygous LOF ECHDC1 variants combined with ACADS c.625G>A suceptibility variants. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.87

BayesDel_addAF

Uncertain

0.16

BayesDel_noAF

Pathogenic

0.29

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.20

.;T;.;.;.;T;T

Eigen

Pathogenic

0.84

Eigen_PC

Pathogenic

0.80

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.89

.;D;.;D;D;D;T

M_CAP

Uncertain

0.19

MetaRNN

Uncertain

0.72

D;D;D;D;D;D;D

MetaSVM

Uncertain

0.16

MutationAssessor

Pathogenic

3.5

.;H;.;.;.;.;.

PrimateAI

Uncertain

0.63

PROVEAN

Pathogenic

-5.3

D;D;D;D;D;D;D

REVEL

Pathogenic

0.84

Sift

Uncertain

0.017

D;D;D;D;D;D;D

Sift4G

Uncertain

0.0080

D;D;D;D;D;.;.

Polyphen

1.0

.;D;.;.;.;.;.

Vest4

0.88

MVP

0.87

MPC

0.75

ClinPred

0.75

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.43

gMVP

0.91

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