ADGRA3 p.Arg820=
c.2458A>C · rs1350234991 · VCV1647435
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00267%, afr)
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 2.9 | GERP 0.31, phastCons 1 |
| Overall | ||
| CADD | 9.756 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00267%
African / African-American · 2/74,868 alleles
Filtering AF
0.000443%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.000166%
Overall
0.000124%
2/1,609,518 alleles · very rare
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
- ADGRA3
- Protein
- p.Arg820=
- Coding
- c.2458A>C
- MANE Select
- NM_145290
- dbSNP
- rs1350234991
- Type
- single nucleotide variant
- Location
- chr4:22401454 (GRCh38)
- Gene constraint
- LOEUF 0.607 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 70.20
Similar variants
- ADGRA3 p.Ala1008Val Uncertain significance ★★ ⚠ same type
- ADGRA3 p.Ala1120Val Uncertain significance ★★ ⚠ same type
- ADGRA3 p.Ala1127Ser Uncertain significance ★★ ⚠ same type
- ADGRA3 p.Ala177Val Uncertain significance ★★ ⚠ same type
- ADGRA3 p.Ala26Pro Uncertain significance ★★ ⚠ same type
- ADGRA3 p.Ala316Pro Uncertain significance ★★ ⚠ same type
- ADGRA3 p.Ala37Gly Uncertain significance ★★ ⚠ same type
- ADGRA3 p.Ala407Thr 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/adgra3-p-arg820 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown