ITGA3 p.Tyr163=
c.489C>T · rs781302203 · VCV2884823
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0245%, 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 -13 | GERP -3.7 |
| Overall | ||
| CADD | 0.448 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0245%
East Asian · 11/44,900 alleles
Filtering AF
0.0137%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0105%
Overall
0.00167%
27/1,614,064 alleles · ultra-rare
exomes 25/1,461,818 · genomes 2/152,246 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| East Asiangrpmax | 0.0245% | 4,082 |
| South Asian | 0.00439% | 22,773 |
| Remaining individualsnot grpmax-eligible | 0.0032% | 31,243 |
| Admixed American | 0.00167% | 60,014 |
| European (non-Finnish) | 0.000763% | 131,117 |
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.Tyr163=
- Coding
- c.489C>T
- MANE Select
- NM_002204
- dbSNP
- rs781302203
- Type
- single nucleotide variant
- Location
- chr17:50068130 (GRCh38)
- Gene constraint
- LOEUF 0.69 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 83.88
Similar variants
- 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
- ITGA3 p.Arg156Trp 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-tyr163 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown