CYBC1 p.Arg22=
c.66G>A · rs370077682 · VCV1682738
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 3 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0994%, mid)
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 0.077 | GERP -0.84, phastCons 0.92 |
| Overall | ||
| CADD | 10.01 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0994%
Middle Eastern · 6/6,034 alleles
Filtering AF
0.0433%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0296%
Overall
0.00677%
107/1,580,578 alleles · ultra-rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Middle Easterngrpmax | 0.0994% | 1,006 |
| Ashkenazi Jewishnot grpmax-eligible | 0.0313% | 3,198 |
| Remaining individualsnot grpmax-eligible | 0.0131% | 7,647 |
| South Asian | 0.00695% | 14,383 |
| European (non-Finnish) | 0.0061% | 16,393 |
| Admixed American | 0.00554% | 18,063 |
| African / African-American | 0.0054% | 18,505 |
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
- CYBC1
- Protein
- p.Arg22=
- Coding
- c.66G>A
- MANE Select
- NM_001033046
- dbSNP
- rs370077682
- Type
- single nucleotide variant
- Location
- chr17:82449189 (GRCh38)
- Gene constraint
- LOEUF 1.556 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 83.65 · 1 PDB
- Residue 22
- a UniProt-annotated variant site (in cgd5; loss of protein expression; decreased pma-induced oxidative burst in neutrophils)
Similar variants
- CYBC1 p.Arg22Gln Uncertain significance ★ same residue
- CYBC1 p.Arg22Trp Uncertain significance ★ same residue
- CYBC1 p.Arg129Trp Uncertain significance ★★ same type
- CYBC1 p.Arg147Cys Uncertain significance ★★ ⚠ same type
- CYBC1 p.Asp43Asn Uncertain significance ★★ ⚠ same type
- CYBC1 p.Asp98Asn Uncertain significance ★★ ⚠ same type
- CYBC1 p.Thr82Met Uncertain significance ★★ ⚠ same type
- CYBC1 c.127+13C>A Benign/Likely benign ★★ 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/cybc1-p-arg22 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown