ACAN p.Ala190=
c.570C>T · rs369187075 · VCV798297
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0134%, eas)
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 | ||
| Conservation | phyloP -11 | GERP -3.8 |
| Overall | ||
| CADD | 3.586 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0134%
East Asian · 6/44,614 alleles
Filtering AF
0.00582%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00396%
Overall
0.00199%
32/1,605,758 alleles · ultra-rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| East Asiangrpmax | 0.0134% | 7,436 |
| African / African-American | 0.00401% | 24,940 |
| Admixed American | 0.00339% | 29,534 |
| Remaining individualsnot grpmax-eligible | 0.00322% | 31,067 |
| European (non-Finnish) | 0.00161% | 61,926 |
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
- ACAN
- Protein
- p.Ala190=
- Coding
- c.570C>T
- MANE Select
- NM_001369268
- dbSNP
- rs369187075
- Type
- single nucleotide variant
- Location
- chr15:88840127 (GRCh38)
- Gene constraint
- LOEUF 0.377 · pLI 1.00 (gnomAD)
- Structure
- AlphaFold pLDDT 53.32 · 4 PDB
- Residue 190
- a disulfide bond; an α-helix; the link 1 domain; the 'g1-b' region
Similar variants
- ACAN p.Ala190Thr Uncertain significance ★★ ⚠ same residue
- ACAN p.Ala190Val Uncertain significance ★ ⚠ same residue
- ACAN c.1733-2A>G Likely pathogenic ★★ same type
- ACAN c.630-13G>A Pathogenic ★★ same type
- ACAN c.7302+1G>A Pathogenic/Likely pathogenic ★★ same type
- ACAN p.Arg236Ter Pathogenic ★★ same type
- ACAN p.Arg386Ter Pathogenic/Likely pathogenic ★★ same type
- ACAN p.Arg394Ter Pathogenic ★★ 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/acan-p-ala190 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown