Is ACOX2 p.Ala558Val (c.1673C>T) pathogenic?

ACOX2 p.Ala558Val (c.1673C>T) is classified Uncertain significance in ACOX2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-06-05). AlphaMissense: likely benign (0.1173); Very rare (popmax 8.47e-05%, nfe).

How common is ACOX2 p.Ala558Val (c.1673C>T) in the general population?

ACOX2 p.Ala558Val (c.1673C>T) is very rare (popmax 8.47e-05%, nfe) (gnomAD).

What do computational predictors say about ACOX2 p.Ala558Val (c.1673C>T)?

AlphaMissense predicts likely benign (score 0.1173) — an in-silico prediction, not a clinical call.

ACOX2 p.Ala558Val

c.1673C>T · VCV4745867

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1173 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 8.47e-05%, nfe)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.1173	likely benign
REVEL	0.041	moderately benign-leaning
SaProt	LLR -7.04	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 2.9	GERP -0.11, phastCons 0.33
Regional constraint	o/e 0.95	unconstrained · MANE · 30 kb · p 0.14 · regional, not allelic
Overall
CADD	16.45	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 8.47e-05% European (non-Finnish) · 1/1,180,036 alleles

Overall 0.000657% 1/152,146 alleles · very rare

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: ACOX2
Protein: p.Ala558Val
Coding: c.1673C>T
MANE Select: NM_003500
Type: single nucleotide variant
Location: chr3:58517383 (GRCh38)
Gene constraint: LOEUF 0.914 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 94.49
Residue 558: a UniProt-annotated variant site (in cbas6; patient liver samples show absence of the protein; complete loss of fatty acid beta-oxidation activity)

Full ACOX2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

ACOX2 p.Ala106Val Uncertain significance ★★ ⚠ same type
ACOX2 p.Ala48Glu Uncertain significance ★★ ⚠ same type
ACOX2 p.Arg197Gln Uncertain significance ★★ ⚠ same type
ACOX2 p.Arg197Trp Uncertain significance ★★ ⚠ same type
ACOX2 p.Arg215Trp Uncertain significance ★★ ⚠ same type
ACOX2 p.Arg318His Uncertain significance ★★ ⚠ same type
ACOX2 p.Arg323Cys Uncertain significance ★★ ⚠ same type
ACOX2 p.Arg323His Uncertain significance ★★ ⚠ same type

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/acox2-p-ala558val (accessed [today's date]).

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