RASA2 p.Ile255=
c.765C>T · rs1227780410 · VCV1760009
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00668%, afr)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | <0.2 | all four deltas below 0.2 · C>A here scores Δ0.34 · evaluated, not missing |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP -3.8 | GERP -3.4 |
| Overall | ||
| CADD | 2.755 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00668%
African / African-American · 5/74,856 alleles
Filtering AF
0.00255%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00162%
Overall
0.000868%
14/1,612,342 alleles · very rare
exomes 10/1,460,268 · genomes 4/152,074 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 0.00668% | 14,971 |
| East Asian | 0.00223% | 44,748 |
| South Asian | 0.0022% | 45,500 |
| Remaining individualsnot grpmax-eligible | 0.0016% | 62,396 |
| European (non-Finnish) | 0.000424% | 235,782 |
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
- RASA2
- Protein
- p.Ile255=
- Coding
- c.765C>T
- MANE Select
- NM_006506
- dbSNP
- rs1227780410
- Type
- single nucleotide variant
- Location
- chr3:141559897 (GRCh38)
- Gene constraint
- LOEUF 1.484 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 83.63
- Residue 255
- the c2 2 domain
Similar variants
- RASA2 c.612-3C>T Uncertain significance ★★ same type
- RASA2 p.Ala360Gly Uncertain significance ★★ same type
- RASA2 p.Ala489Thr Uncertain significance ★★ same type
- RASA2 p.Ala503Ser Uncertain significance ★★ same type
- RASA2 p.Ala742Val Uncertain significance ★★ same type
- RASA2 p.Arg117His Uncertain significance ★★ same type
- RASA2 p.Arg310Gln Uncertain significance ★★ same type
- RASA2 p.Arg366Gln 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/rasa2-p-ile255 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown