Is CDH23 p.Arg1916Cys (c.5746C>T) pathogenic?

CDH23 p.Arg1916Cys (c.5746C>T) is classified Uncertain significance in CDH23 (ClinVar, Single submitter, 1 submitter; last evaluated 2022-09-06). AlphaMissense: ambiguous (0.5362); Very rare (popmax 0.00134%, afr).

How common is CDH23 p.Arg1916Cys (c.5746C>T) in the general population?

CDH23 p.Arg1916Cys (c.5746C>T) is very rare (popmax 0.00134%, afr) (gnomAD).

What do computational predictors say about CDH23 p.Arg1916Cys (c.5746C>T)?

AlphaMissense predicts ambiguous (score 0.5362) — an in-silico prediction, not a clinical call.

CDH23 p.Arg1916Cys

c.5746C>T · rs780095045 · VCV965775

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

ambiguous

0.5362 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00134%, afr)

Computational evidence

Protein change
AlphaMissense	0.5362	ambiguous
REVEL	0.734	pathogenic-leaning
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 4.7	GERP 1.8, phastCons 1
Regional constraint	o/e 0.96	unconstrained · MANE · 359 kb · p 0.017 · regional, not allelic
Overall
CADD	32.0	PHRED · no single calibrated threshold — expert panels disagree

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00134% African / African-American · 1/74,734 alleles

Overall 0.000657% 1/152,210 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: CDH23
Protein: p.Arg1916Cys
Coding: c.5746C>T
MANE Select: NM_022124
dbSNP: rs780095045
Type: single nucleotide variant
Location: chr10:71785664 (GRCh38)
Gene constraint: LOEUF 0.685 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Residue 1916: the cadherin 18 domain

Full CDH23 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CDH23 p.Arg1916His Conflicting classifications of pathogenicity ★ ⚠ same residue
CDH23 p.Arg1916Ser Uncertain significance ★ same residue
CDH23 p.Arg1916= Likely benign ★ same residue
CDH23 p.Arg2029Trp Pathogenic ★★★ ⚠ same type
CDH23 p.Asp127Gly Likely pathogenic ★★★ same type
CDH23 p.Glu956Lys Pathogenic ★★★ same type
CDH23 p.Pro240Leu Pathogenic ★★★ same type
CDH23 c.1515-12G>A Uncertain significance ★★★ 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/cdh23-p-arg1916cys (accessed [today's date]).

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