Is ACADS p.Met1Val (c.1A>G) pathogenic?

ACADS p.Met1Val (c.1A>G) is classified Pathogenic/Likely pathogenic in ACADS (ClinVar, Multiple submitters, 4 submitters; last evaluated 2024-04-22). Very rare (popmax 0.00188%, amr); Associated with short chain acyl-CoA dehydrogenase deficiency.

What condition is associated with ACADS p.Met1Val (c.1A>G)?

ACADS p.Met1Val (c.1A>G) is associated with short chain acyl-CoA dehydrogenase deficiency (ClinVar).

How common is ACADS p.Met1Val (c.1A>G) in the general population?

ACADS p.Met1Val (c.1A>G) is very rare (popmax 0.00188%, amr) (gnomAD).

How is Short chain acyl-CoA dehydrogenase deficiency inherited?

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

ACADS p.Met1Val

c.1A>G · rs1291226969 · VCV552667

Pathogenic/Likely pathogenic Multiple submitters

Classification

Pathogenic/Likely pathogenic

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 4 submitters

Consequence

start-loss

predicted LoF

gnomAD v4.1

Rare

very rare (popmax 0.00188%, amr)

Conditions

short chain acyl-CoA dehydrogenase deficiency

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequence	start-loss	predicted loss-of-function
REVEL	0.665	pathogenic-leaning
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7	GERP 1.4, phastCons 1
Overall
CADD	20.3	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

Grpmax group 0.00188% Admixed American · 1/53,226 alleles

Overall 0.000214% 3/1,401,014 alleles · very rare

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.00188%	53,226
South Asian	0.00117%	85,156
European (non-Finnish)	8.63e-05%	1,158,426

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene: ACADS
Protein: p.Met1Val
Coding: c.1A>G
MANE Select: NM_000017
dbSNP: rs1291226969
Type: single nucleotide variant
Location: chr12:120725886 (GRCh38)
Gene constraint: LOEUF 0.852 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 93.58 · 4 PDB

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

Disease context

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

For Short chain acyl-CoA dehydrogenase deficiency (Orphanet):

Inheritance: Autosomal recessive
Onset: Childhood, Infancy, Neonatal

Similar variants

ACADS p.Met1Thr Pathogenic/Likely pathogenic ★★ same residue
ACADS p.Met1Ile Pathogenic ★ same residue
ACADS c.211-2A>G Likely pathogenic ★★ same condition
ACADS c.625-1G>A Likely pathogenic ★★ same condition
ACADS c.795+1G>A Pathogenic/Likely pathogenic ★★ same condition
ACADS p.Ala199Val Likely pathogenic ★★ same condition
ACADS p.Arg107Cys Pathogenic ★★ same condition
ACADS p.Arg272Cys Pathogenic/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/acads-p-met1val (accessed [today's date]).

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