ARHGAP31 p.Ile50=
c.150C>T · rs375072197 · VCV744148
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0167%, amr)
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 -1.6 | GERP -5.8 |
| Overall | ||
| CADD | 7.498 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0167%
Admixed American · 10/60,014 alleles
Filtering AF
0.009%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00681%
Overall
0.00328%
53/1,614,108 alleles · ultra-rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Admixed Americangrpmax | 0.0167% | 6,001 |
| African / African-American | 0.012% | 8,338 |
| Remaining individualsnot grpmax-eligible | 0.0048% | 20,837 |
| European (non-Finnish) | 0.00254% | 39,334 |
| South Asian | 0.0011% | 91,082 |
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
- ARHGAP31
- Protein
- p.Ile50=
- Coding
- c.150C>T
- MANE Select
- NM_020754
- dbSNP
- rs375072197
- Type
- single nucleotide variant
- Location
- chr3:119365365 (GRCh38)
- Gene constraint
- LOEUF 0.38 · pLI 1.00 · ClinGen HI 0/3 (gnomAD)
- Structure
- AlphaFold pLDDT 43.32
- Residue 50
- the rho-gap domain
Similar variants
- ARHGAP31 p.Ala18Val Uncertain significance ★★ ⚠ same type
- ARHGAP31 p.Ala634Asp Uncertain significance ★★ ⚠ same type
- ARHGAP31 p.Arg1377Ser Uncertain significance ★★ ⚠ same type
- ARHGAP31 p.Arg199Gln Uncertain significance ★★ ⚠ same type
- ARHGAP31 p.Arg256Cys Uncertain significance ★★ ⚠ same type
- ARHGAP31 p.Arg426Gly Uncertain significance ★★ ⚠ same type
- ARHGAP31 p.Arg478His Uncertain significance ★★ ⚠ same type
- ARHGAP31 p.Arg510Ser 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/arhgap31-p-ile50 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown