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CDH23 p.Arg3020His

c.9059G>A · rs767052814 · VCV1479916

Uncertain significance Multiple submitters
Classification
Uncertain significance
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
AlphaMissense
likely benign
0.0838 · ACMG-weighted
gnomAD v4.1
Rare
ultra-rare (popmax 0.0164%, mid)
Missense predictors
0/2 damaging
AlphaMissense, REVEL

Computational evidence

Protein change
AlphaMissense0.0838likely benign
REVEL0.07moderately benign-leaning
⇒ AlphaMissense and REVEL both call this tolerated.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 4GERP 0.63, phastCons 1
Regional constrainto/e 1.01unconstrained · MANE · 12 kb · p 0.86 · regional, not allelic
Overall
CADD25.0PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0164% Middle Eastern · 1/6,082 alleles
Filtering AF 0.000689% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000539%
Overall 0.00217% 35/1,613,706 alleles · ultra-rare
Ancestry group Frequency 1 in
Finnishnot grpmax-eligible 0.0234% 4,267
Middle Easterngrpmax 0.0164% 6,082
Remaining individualsnot grpmax-eligible 0.0032% 31,227
African / African-American 0.00267% 37,450
East Asian 0.00223% 44,878
European (non-Finnish) 0.00119% 84,271

Finnish shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

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
CDH23
Protein
p.Arg3020His
Coding
c.9059G>A
MANE Select
NM_022124
dbSNP
rs767052814
Type
single nucleotide variant
Location
chr10:71810551 (GRCh38)
Gene constraint
LOEUF 0.685 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Full CDH23 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/cdh23-p-arg3020his (accessed [today's date]).

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