TRAP1 p.Ala222=
c.666A>G · rs150918088 · VCV719778
Benign/Likely benign
Multiple submitters
Classification
Benign/Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 3 submitters
gnomAD v4.1
Rare
low-frequency (popmax 1.5%, 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 | ||
| Conservation | phyloP -5.6 | GERP -3.8 |
| Overall | ||
| CADD | 0.257 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
1.5%
African / African-American · 1,124/75,050 alleles
Filtering AF
1.42%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 1.4%
Overall
0.0774%
1,249/1,614,160 alleles · low-frequency
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 1.5% | 67 |
| Admixed American | 0.09% | 1,111 |
| Remaining individualsnot grpmax-eligible | 0.0848% | 1,179 |
| Middle Eastern | 0.0495% | 2,021 |
| South Asian | 0.00769% | 13,012 |
| European (non-Finnish) | 0.000678% | 147,505 |
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
- TRAP1
- Protein
- p.Ala222=
- Coding
- c.666A>G
- MANE Select
- NM_016292
- dbSNP
- rs150918088
- Type
- single nucleotide variant
- Location
- chr16:3677536 (GRCh38)
- Gene constraint
- LOEUF 1.343 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 86.28 · 24 PDB
- Residue 222
- a β-strand
Similar variants
- TRAP1 p.Ala319Val Uncertain significance ★★ ⚠ same type
- TRAP1 p.Ala409Thr Uncertain significance ★★ ⚠ same type
- TRAP1 p.Ala50Ser Uncertain significance ★★ ⚠ same type
- TRAP1 p.Ala64Thr Uncertain significance ★★ ⚠ same type
- TRAP1 p.Ala659Thr Uncertain significance ★★ ⚠ same type
- TRAP1 p.Ala7Val Uncertain significance ★★ ⚠ same type
- TRAP1 p.Arg271Pro Uncertain significance ★★ ⚠ same type
- TRAP1 p.Arg340His 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/trap1-p-ala222 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown