UNC45A p.Ala558=
c.1674C>T · rs749419769 · VCV1938778
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00446%, eas)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | <0.2 | no splice effect predicted · four deltas, not one · how we know |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP -20 | GERP -4.1 |
| Overall | ||
| CADD | 0.104 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00446%
East Asian · 2/44,892 alleles
Filtering AF
0.000875%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.000443%
Overall
0.00124%
20/1,613,988 alleles · very rare
exomes 18/1,461,846 · genomes 2/152,142 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| East Asiangrpmax | 0.00446% | 22,446 |
| South Asian | 0.00329% | 30,360 |
| Remaining individualsnot grpmax-eligible | 0.0032% | 31,242 |
| Admixed American | 0.00167% | 59,994 |
| European (non-Finnish) | 0.00102% | 98,336 |
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
- UNC45A
- Protein
- p.Ala558=
- Coding
- c.1674C>T
- MANE Select
- NM_018671
- dbSNP
- rs749419769
- Type
- single nucleotide variant
- Location
- chr15:90948220 (GRCh38)
- Gene constraint
- LOEUF 0.885 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 86.36 · 1 PDB
- Residue 558
- a UniProt-annotated variant site (in oohe; uncertain significance)
Similar variants
- UNC45A p.Ala214Val Uncertain significance ★★ ⚠ same type
- UNC45A p.Ala371Thr Uncertain significance ★★ ⚠ same type
- UNC45A p.Ala386Val Uncertain significance ★★ ⚠ same type
- UNC45A p.Ala428Thr Uncertain significance ★★ ⚠ same type
- UNC45A p.Ala592Val Uncertain significance ★★ ⚠ same type
- UNC45A p.Ala711Thr Uncertain significance ★★ ⚠ same type
- UNC45A p.Ala761Thr Uncertain significance ★★ ⚠ same type
- UNC45A p.Arg107Gly 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/unc45a-p-ala558 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown