CHD3 p.His648=
c.1944C>T · rs368579336 · VCV792355
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00169%, nfe)
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 3.3 | GERP 1.9, phastCons 1 |
| Overall | ||
| CADD | 13.69 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00169%
European (non-Finnish) · 20/1,179,958 alleles
Filtering AF
0.00111%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0009%
Overall
0.00136%
22/1,613,946 alleles · very rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| European (non-Finnish)grpmax | 0.00169% | 58,998 |
| African / African-American | 0.00133% | 74,922 |
| South Asian | 0.0011% | 91,070 |
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.His648=
- Coding
- c.1944C>T
- MANE Select
- NM_001005273
- dbSNP
- rs368579336
- Type
- single nucleotide variant
- Location
- chr17:7897995 (GRCh38)
- Gene constraint
- LOEUF 0.257 · pLI 1.00 (gnomAD)
- Structure
- AlphaFold pLDDT 63.21
- Residue 648
- the chromo 2 domain; a UniProt-annotated variant site (in snibcps)
Similar variants
- CHD3 p.His648Tyr Uncertain significance ★ ⚠ same residue
- CHD3 c.4073-2A>C Likely pathogenic ★★ same type
- CHD3 p.Arg103Ter Pathogenic ★★ same type
- CHD3 p.Arg1078Gln Pathogenic/Likely pathogenic ★★ same type
- CHD3 p.Arg1121Pro Pathogenic/Likely pathogenic ★★ same type
- CHD3 p.Arg1169Gln Pathogenic/Likely pathogenic ★★ same type
- CHD3 p.Arg1169Pro Pathogenic/Likely pathogenic ★★ same type
- CHD3 p.Arg1169Trp Pathogenic ★★ 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/chd3-p-his648 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown