CYBC1 p.His97=
c.291C>T · rs147800925 · VCV1166731
Benign/Likely benign
Multiple submitters
Classification
Benign/Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 4 submitters
gnomAD v4.1
Rare
rare (popmax 0.892%, 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 -3.8 | GERP -3.7 |
| Overall | ||
| CADD | 1.597 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.892%
Middle Eastern · 54/6,052 alleles
Filtering AF
0.702%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.634%
Overall
0.035%
564/1,610,452 alleles · rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Middle Easterngrpmax | 0.892% | 112 |
| African / African-American | 0.264% | 379 |
| South Asian | 0.108% | 923 |
| Remaining individualsnot grpmax-eligible | 0.0561% | 1,782 |
| Admixed American | 0.0252% | 3,965 |
| European (non-Finnish) | 0.0137% | 7,274 |
| Ashkenazi Jewishnot grpmax-eligible | 0.0068% | 14,705 |
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.His97=
- Coding
- c.291C>T
- MANE Select
- NM_001033046
- dbSNP
- rs147800925
- Type
- single nucleotide variant
- Location
- chr17:82445871 (GRCh38)
- Gene constraint
- LOEUF 1.556 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 83.65 · 1 PDB
- Residue 97
- a UniProt-annotated variant site (in cgd5; loss of protein expression; decreased pma-induced oxidative burst in neutrophils)
Similar variants
- CYBC1 p.His97Tyr 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
- CYBC1 c.127+16C>T 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-his97 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown