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ACO2 p.His406=

c.1218T>C · rs1044916140 · VCV1161221

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.000254%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP -11GERP -3.7
Overall
CADD1.007PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.000254% European (non-Finnish) · 3/1,180,046 alleles
Filtering AF 6.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.9e-05%
Overall 0.000186% 3/1,614,104 alleles · very rare exomes 2/1,461,854 · genomes 1/152,250 · joint denominator

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
ACO2
Protein
p.His406=
Coding
c.1218T>C
MANE Select
NM_001098
dbSNP
rs1044916140
Type
single nucleotide variant
Location
chr22:41522909 (GRCh38)
Gene constraint
LOEUF 0.489 · pLI 0.98 (gnomAD)
Structure
AlphaFold pLDDT 95.44
Full ACO2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

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/aco2-p-his406 (accessed [today's date]).

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