CD81 p.Arg231=
c.693G>C · VCV3683836
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00446%, 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 1.7 | GERP -3.3, phastCons 1 |
| Overall | ||
| CADD | 9.689 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00446%
East Asian · 2/44,890 alleles
Filtering AF
0.000739%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.000276%
Overall
0.000186%
3/1,612,620 alleles · very rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| East Asiangrpmax | 0.00446% | 22,445 |
| African / African-American | 0.00133% | 74,940 |
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
- CD81
- Protein
- p.Arg231=
- Coding
- c.693G>C
- MANE Select
- NM_004356
- Type
- single nucleotide variant
- Location
- chr11:2396848 (GRCh38)
- Gene constraint
- LOEUF 0.702 · pLI 0.36 (gnomAD)
- Structure
- AlphaFold pLDDT 87.24 · 16 PDB
Similar variants
- CD81 p.Arg231Gln Uncertain significance ★★ ⚠ same residue
- CD81 c.561+5G>A Uncertain significance ★★ same type
- CD81 p.Ala120Thr Uncertain significance ★★ ⚠ same type
- CD81 p.Ala54Val Uncertain significance ★★ ⚠ same type
- CD81 p.Asn115Ser Uncertain significance ★★ ⚠ same type
- CD81 p.Asn141Lys Uncertain significance ★★ ⚠ same type
- CD81 p.Asn141Ser Uncertain significance ★★ ⚠ same type
- CD81 p.Asn173Asp 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/cd81-p-arg231 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown