NM_004453.4(ETFDH):c.841A>G (p.Ile281Val) AND Multiple acyl-CoA dehydrogenase deficiency

Germline classification:: Uncertain significance (2 submissions)
Last evaluated:: Aug 9, 2022
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV000634898.4

Allele description [Variation Report for NM_004453.4(ETFDH):c.841A>G (p.Ile281Val)]

NM_004453.4(ETFDH):c.841A>G (p.Ile281Val)

Gene:

ETFDH:electron transfer flavoprotein dehydrogenase [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

4q32.1

Genomic location:

Preferred name:

NM_004453.4(ETFDH):c.841A>G (p.Ile281Val)

HGVS:

NC_000004.12:g.158697568A>G
NG_007078.2:g.30227A>G
NM_001281737.2:c.700A>G
NM_001281738.1:c.658A>G
NM_004453.4:c.841A>GMANE SELECT
NP_001268666.1:p.Ile234Val
NP_001268667.1:p.Ile220Val
NP_004444.2:p.Ile281Val
NC_000004.11:g.159618720A>G
NM_004453.2:c.841A>G
NM_004453.3:c.841A>G

Protein change:

I220V

Links:

dbSNP: rs761854400

NCBI 1000 Genomes Browser:

rs761854400

Molecular consequence:

NM_001281737.2:c.700A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001281738.1:c.658A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_004453.4:c.841A>G - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Multiple acyl-CoA dehydrogenase deficiency (MADD)
Synonyms:: ETHYLMALONIC-ADIPICACIDURIA; GA II; Glutaric aciduria, type 2; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0009282; MedGen: C0268596; Orphanet: 26791; OMIM: 231680

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000756267	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Aug 9, 2022)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV001457086	Natera, Inc.	no assertion criteria provided	Uncertain significance (Sep 16, 2020)	germline	clinical testing

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV000756267

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Aug 9, 2022)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

SCV001457086

Natera, Inc.

no assertion criteria provided

Uncertain significance
(Sep 16, 2020)

germline

clinical testing

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group, Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240. doi: 10.1038/s41436-019-0624-9.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV000756267.2

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

Description

This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 281 of the ETFDH protein (p.Ile281Val). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with ETFDH-related conditions. ClinVar contains an entry for this variant (Variation ID: 529453). 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 ETFDH 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.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Natera, Inc., SCV001457086.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Jan 13, 2025

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