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CLCN4 p.His229=

c.687C>T · rs769295270 · VCV1121953

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00559%, 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
ConservationphyloP -7.3GERP -4.4
Overall
CADD1.32PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00559% European (non-Finnish) · 50/894,744 alleles
Filtering AF 0.0043% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00388%
Overall 0.00474% 52/1,096,564 alleles · very rare
Ancestry group Frequency 1 in
European (non-Finnish)grpmax 0.00559% 17,895
Admixed American 0.00218% 45,933
African / African-American 0.00173% 57,848

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.His229=
Coding
c.687C>T
MANE Select
NM_001830
dbSNP
rs769295270
Type
single nucleotide variant
Location
chrX:10206489 (GRCh38)
Structure
AlphaFold pLDDT 84.66
Full CLCN4 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

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-his229 (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown