CLCN4 p.Glu281=
c.843G>A · VCV4720802
Uncertain significance
Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Absent
absent from gnomAD v4.1
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation/SpliceAI carries the signal. | ||
| Splicing | ||
| SpliceAI | Δ0.35 | donor loss · deltas |
|---|---|---|
| Pangolin | Δ0.69 | loss · gain 0.01 · agrees with SpliceAI · independent |
| Constraint at this position | ||
| Conservation | phyloP 11 | GERP 2.3, phastCons 1 |
| Overall | ||
| CADD | 20.4 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.
Variant & gene context
- Gene
- CLCN4
- Protein
- p.Glu281=
- Coding
- c.843G>A
- MANE Select
- NM_001830
- Type
- single nucleotide variant
- Location
- chrX:10206776 (GRCh38)
- Structure
- AlphaFold pLDDT 84.66
- Residue 281
- a functional site (mediates proton transfer from the protein to the inner aqueous phase)
Similar variants
- 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
- CLCN4 p.Val275Met 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-glu281 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown