Is ETFA p.Glu186Ter (c.556G>T) pathogenic?

ETFA p.Glu186Ter (c.556G>T) is classified Pathogenic in ETFA (ClinVar, Single submitter, 1 submitter; last evaluated 2022-08-04). Absent from gnomAD v4.1; Associated with multiple acyl-CoA dehydrogenase deficiency.

What condition is associated with ETFA p.Glu186Ter (c.556G>T)?

ETFA p.Glu186Ter (c.556G>T) is associated with multiple acyl-CoA dehydrogenase deficiency (ClinVar).

How common is ETFA p.Glu186Ter (c.556G>T) in the general population?

ETFA p.Glu186Ter (c.556G>T) is absent from gnomAD v4.1 (gnomAD).

How is Multiple acyl-CoA dehydrogenase deficiency inherited?

Typically Autosomal recessive (Orphanet). A genetic counselor can assess individual risk for a family.

ETFA p.Glu186Ter

c.556G>T · rs2543023391 · VCV2021532

Pathogenic Single submitter

Classification

Pathogenic

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

Consequence

nonsense (stop-gain)

predicted LoF

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

multiple acyl-CoA dehydrogenase deficiency

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequence	nonsense (stop-gain)	predicted loss-of-function
NMD	predicted	premature termination codon in exon 6 of 12
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.7	GERP 1.9, phastCons 1
Overall
CADD	43.0	PHRED · no single calibrated threshold — expert panels disagree

Predicted loss-of-function is descriptive, not an applied PVS1 code.

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: ETFA
Protein: p.Glu186Ter
Coding: c.556G>T
MANE Select: NM_000126
dbSNP: rs2543023391
Type: single nucleotide variant
Location: chr15:76286377 (GRCh38)
Gene constraint: LOEUF 1.166 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 94.00 · 4 PDB
Residue 186: the 'domain i' region; a β-strand

Full ETFA gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

multiple acyl-CoA dehydrogenase deficiency — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Multiple acyl-CoA dehydrogenase deficiency (Orphanet):

Inheritance: Autosomal recessive
Onset: All ages
Prevalence: 1-9 / 1 000 000 (United States)

Similar variants

ETFA p.Glu186Gly Uncertain significance ★★ ⚠ same residue
ETFA p.Glu186= Likely benign ★ same residue
ETFA c.186+1G>A Likely pathogenic ★★ same condition
ETFA c.39+1G>A Likely pathogenic ★★ same condition
ETFA c.451+1G>A Likely pathogenic ★★ same condition
ETFA c.452-2A>G Likely pathogenic ★★ same condition
ETFA c.664+1G>A Likely pathogenic ★★ same condition
ETFA c.665-1G>A Likely pathogenic ★★ same condition

Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →

Cite Sugi Variant

Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/etfa-p-glu186ter (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown