STEAP3 p.Phe321del
c.959TCT[1] · VCV3256185
Uncertain significance
Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.0011%, sas)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | — | not assessed · substitutions only |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP 8.6 | GERP 1.9, phastCons 1 |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0011%
South Asian · 1/91,076 alleles
Filtering AF
6.8e-05%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 1.9e-05%
Overall
0.000249%
4/1,608,700 alleles · very rare
exomes 4/1,456,454 · genomes 0/152,246 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| South Asiangrpmax | 0.0011% | 91,076 |
| European (non-Finnish) | 0.000254% | 393,311 |
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
- STEAP3
- Protein
- p.Phe321del
- Coding
- c.959TCT[1]
- MANE Select
- NM_182915
- Type
- Microsatellite
- Location
- chr2:119248113 (GRCh38)
- Gene constraint
- LOEUF 1.27 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 89.24 · 2 PDB
- Residue 321
- the ferric oxidoreductase domain
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/steap3-p-phe321del (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown