ITGA3 p.Pro81=
c.243C>T · rs780784467 · VCV2182277
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0167%, mid)
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 -1.8 | GERP -3.4 |
| Overall | ||
| CADD | 8.616 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0167%
Middle Eastern · 1/5,976 alleles
Filtering AF
0.00922%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00722%
Overall
0.00174%
28/1,612,550 alleles · ultra-rare
exomes 22/1,460,470 · genomes 6/152,080 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Middle Easterngrpmax | 0.0167% | 5,976 |
| African / African-American | 0.016% | 6,238 |
| Remaining individualsnot grpmax-eligible | 0.0032% | 31,205 |
| South Asian | 0.00221% | 45,343 |
| European (non-Finnish) | 0.000932% | 107,245 |
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
- ITGA3
- Protein
- p.Pro81=
- Coding
- c.243C>T
- MANE Select
- NM_002204
- dbSNP
- rs780784467
- Type
- single nucleotide variant
- Location
- chr17:50064113 (GRCh38)
- Gene constraint
- LOEUF 0.69 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 83.88
Similar variants
- ITGA3 p.Pro81fs Pathogenic/Likely pathogenic ★★ same residue
- ITGA3 c.2070+1G>A Pathogenic ★★ same type
- ITGA3 p.Arg274Gln Likely pathogenic ★★ ⚠ same type
- ITGA3 p.Arg875Ter Likely pathogenic ★★ same type
- ITGA3 c.*48G>A Uncertain significance ★★ same type
- ITGA3 c.*96G>A Uncertain significance ★★ same type
- ITGA3 p.Ala1026Val Uncertain significance ★★ ⚠ same type
- ITGA3 p.Ala1035Val 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/itga3-p-pro81 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown