CHRND p.Ala218=
c.654C>G · rs886044061 · VCV289021
Uncertain significance
Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 8.47e-05%, nfe)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| REVEL | 0.164 | moderately benign-leaning |
|---|---|---|
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
| Constraint at this position | ||
| Conservation | phyloP 0.69 | GERP -0.095, phastCons 0.99 |
| Overall | ||
| CADD | 9.925 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
8.47e-05%
European (non-Finnish) · 1/1,180,024 alleles
Overall
6.84e-05%
1/1,461,840 alleles · very rare
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
- CHRND
- Protein
- p.Ala218=
- Coding
- c.654C>G
- MANE Select
- NM_000751
- dbSNP
- rs886044061
- Type
- single nucleotide variant
- Location
- chr2:232529973 (GRCh38)
- Gene constraint
- LOEUF 0.848 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 84.21 · 25 PDB
- Residue 218
- a β-strand
Similar variants
- CHRND c.1252+1G>A Pathogenic/Likely pathogenic ★★ same type
- CHRND c.821-2A>C Pathogenic/Likely pathogenic ★★ same type
- CHRND c.933-2A>G Likely pathogenic ★★ same type
- CHRND p.Arg336Gln Likely pathogenic ★★ same type
- CHRND p.Arg43Trp Pathogenic/Likely pathogenic ★★ same type
- CHRND p.Cys257Arg Pathogenic/Likely pathogenic ★★ same type
- CHRND p.Trp78Ter Pathogenic ★★ same type
- CHRND p.Trp83Ter Pathogenic/Likely 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/chrnd-p-ala218 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown