CHD3 p.Pro91Leu
c.272C>T · VCV4227750
Uncertain significance
Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0521%, mid)
Conditions
1
Inborn genetic diseases
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| REVEL | 0.102 | moderately benign-leaning |
|---|---|---|
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
| Constraint at this position | ||
| Conservation | phyloP 4.5 | GERP 0.19, phastCons 1 |
| Overall | ||
| CADD | 15.2 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0521%
Middle Eastern · 1/1,920 alleles
Filtering AF
0.000176%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.000128%
Overall
0.000912%
9/986,694 alleles · ultra-rare
exomes 2/843,014 · genomes 7/143,680 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Middle Easterngrpmax | 0.0521% | 1,920 |
| Admixed American | 0.0063% | 15,880 |
| South Asian | 0.00453% | 22,052 |
| Remaining individualsnot grpmax-eligible | 0.00335% | 29,832 |
| European (non-Finnish) | 0.0006% | 166,653 |
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
- CHD3
- Protein
- p.Pro91Leu
- Coding
- c.272C>T
- MANE Select
- NM_001005273 · reported on NM_001005271
- Type
- single nucleotide variant
- Location
- chr17:7885078 (GRCh38)
- Gene constraint
- LOEUF 0.257 · pLI 1.00 (gnomAD)
- Structure
- AlphaFold pLDDT 63.21
- Residue 91
- the 'disordered' region
Similar variants
- CHD3 p.Gly91Ala Uncertain significance ★ ⚠ same residue
- CHD3 p.Arg103Ter Pathogenic ★★ same condition
- CHD3 p.Arg1078Gln Pathogenic/Likely pathogenic ★★ same condition
- CHD3 p.Arg966Trp Pathogenic ★★ ⚠ same condition
- CHD3 p.Arg985Trp Pathogenic/Likely pathogenic ★★ same condition
- CHD3 p.Pro1918= Likely pathogenic ★★ same condition
- CHD3 p.Arg1266Trp Uncertain significance ★★ ⚠ same condition
- CHD3 p.Arg1377Cys Uncertain significance ★★ ⚠ same condition
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/chd3-p-pro91leu (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown