HPS3 p.Ala68=
c.204C>T · rs754627074 · VCV1118818
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0168%, 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 0.52 | GERP -0.87, phastCons 1 |
| Overall | ||
| CADD | 12.11 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0168%
East Asian · 7/41,570 alleles
Filtering AF
0.00787%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00557%
Overall
0.000516%
8/1,550,816 alleles · ultra-rare
exomes 7/1,398,624 · genomes 1/152,192 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| East Asiangrpmax | 0.0168% | 5,939 |
| African / African-American | 0.00136% | 73,446 |
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
- HPS3
- Protein
- p.Ala68=
- Coding
- c.204C>T
- MANE Select
- NM_032383
- dbSNP
- rs754627074
- Type
- single nucleotide variant
- Location
- chr3:149129927 (GRCh38)
- Gene constraint
- LOEUF 0.684 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 82.67
Similar variants
- HPS3 p.Ala68fs Pathogenic ★ same residue
- HPS3 c.1163+1G>A Pathogenic ★★ same type
- HPS3 c.1246-2A>T Likely pathogenic ★★ same type
- HPS3 c.1509+1G>A Likely pathogenic ★★ same type
- HPS3 c.1691+1G>A Pathogenic ★★ same type
- HPS3 c.1692-2A>G Likely pathogenic ★★ same type
- HPS3 c.1873-1G>A Likely pathogenic ★★ same type
- HPS3 c.2106+1G>T Likely 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/hps3-p-ala68 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown