CLCN4 p.Ala522=
c.1566G>A · rs775103186 · VCV699434
Benign
Single submitter
Classification
Benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00657%, amr)
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 -2.4 | GERP -4.5 |
| Overall | ||
| CADD | 0.672 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00657%
Admixed American · 3/45,653 alleles
Filtering AF
0.00395%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00353%
Overall
0.00473%
57/1,205,756 alleles · very rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Admixed Americangrpmax | 0.00657% | 15,218 |
| African / African-American | 0.00527% | 18,984 |
| European (non-Finnish) | 0.00515% | 19,400 |
| Remaining individualsnot grpmax-eligible | 0.00422% | 23,696 |
| South Asian | 0.00355% | 28,176 |
| Finnishnot grpmax-eligible | 0.00215% | 46,453 |
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
- CLCN4
- Protein
- p.Ala522=
- Coding
- c.1566G>A
- MANE Select
- NM_001830
- dbSNP
- rs775103186
- Type
- single nucleotide variant
- Location
- chrX:10212643 (GRCh38)
- Structure
- AlphaFold pLDDT 84.66
Similar variants
- CLCN4 p.Ala522Val Uncertain significance ★ ⚠ same residue
- CLCN4 c.844-1G>A Pathogenic/Likely pathogenic ★★ same type
- CLCN4 p.Ala555Val Pathogenic ★★ ⚠ same type
- CLCN4 p.Arg718Trp Pathogenic ★★ same type
- CLCN4 p.Asp89Asn Pathogenic/Likely pathogenic ★★ ⚠ same type
- CLCN4 p.Gly467Ser Likely pathogenic ★★ same type
- CLCN4 p.Gly544Arg Pathogenic ★★ same type
- CLCN4 p.Gly731Arg 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/clcn4-p-ala522 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown