ARHGAP31 p.His166=
c.498C>T · VCV3608468
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00667%, 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 -8.5 | GERP -5.8 |
| Overall | ||
| CADD | 2.235 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00667%
Admixed American · 4/59,996 alleles
Filtering AF
0.00226%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00135%
Overall
0.000743%
12/1,614,066 alleles · very rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Admixed Americangrpmax | 0.00667% | 14,999 |
| African / African-American | 0.00267% | 37,464 |
| Finnishnot grpmax-eligible | 0.00156% | 64,036 |
| South Asian | 0.0011% | 91,088 |
| European (non-Finnish) | 0.000339% | 295,012 |
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.His166=
- Coding
- c.498C>T
- MANE Select
- NM_020754
- Type
- single nucleotide variant
- Location
- chr3:119382358 (GRCh38)
- Gene constraint
- LOEUF 0.38 · pLI 1.00 · ClinGen HI 0/3 (gnomAD)
- Structure
- AlphaFold pLDDT 43.32
- Residue 166
- 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-his166 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown