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ACO1 p.His252=

c.756C>T · rs147664590 · VCV786904

Benign Multiple submitters
Classification
Benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
rare (popmax 0.726%, afr)

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 -0.73GERP -4
Overall
CADD6.527PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.726% African / African-American · 542/74,652 alleles
Filtering AF 0.676% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.655%
Overall 0.0366% 588/1,606,552 alleles · rare exomes 282/1,454,254 · genomes 306/152,298 · joint denominator
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.726% 138
Remaining individualsnot grpmax-eligible 0.0322% 3,108
Admixed American 0.0254% 3,935
Middle Eastern 0.0166% 6,042
European (non-Finnish) 0.00085% 117,631

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
ACO1
Protein
p.His252=
Coding
c.756C>T
MANE Select
NM_002197
dbSNP
rs147664590
Type
single nucleotide variant
Location
chr9:32419135 (GRCh38)
Gene constraint
LOEUF 0.839 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 94.75 · 2 PDB
Full ACO1 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/aco1-p-his252 (accessed [today's date]).

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