Is CDH13 p.Arg99Gln (c.296G>A) pathogenic?

CDH13 p.Arg99Gln (c.296G>A) is classified Uncertain significance in CDH13 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-11-27). AlphaMissense: likely benign (0.0737); Ultra-rare (popmax 0.012%, afr).

How common is CDH13 p.Arg99Gln (c.296G>A) in the general population?

CDH13 p.Arg99Gln (c.296G>A) is ultra-rare (popmax 0.012%, afr) (gnomAD).

What do computational predictors say about CDH13 p.Arg99Gln (c.296G>A)?

AlphaMissense predicts likely benign (score 0.0737) — an in-silico prediction, not a clinical call.

CDH13 p.Arg99Gln

c.296G>A · rs369916041 · VCV2407625

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0737 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.012%, afr)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0737	likely benign
REVEL	0.092	moderately benign-leaning
SaProt	LLR -7.33	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 8.6	GERP 1.5, phastCons 1
Regional constraint	o/e 1.16	unconstrained · MANE · 1,168 kb · p 1.2e-06 · regional, not allelic
Overall
CADD	21.0	PHRED · 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 0.012% African / African-American · 9/74,906 alleles

Filtering AF 0.00624% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00474%

Overall 0.00545% 88/1,613,496 alleles · ultra-rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.012%	8,323
European (non-Finnish)	0.00636%	15,730
Admixed American	0.005%	19,989
Remaining individualsnot grpmax-eligible	0.0016%	62,454

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: CDH13
Protein: p.Arg99Gln
Coding: c.296G>A
MANE Select: NM_001257
dbSNP: rs369916041
Type: single nucleotide variant
Location: chr16:83032148 (GRCh38)
Gene constraint: LOEUF 0.456 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 85.19 · 1 PDB

Full CDH13 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CDH13 c.1102-6T>C Benign ★★ same type
CDH13 c.1284+90A>G Benign ★★ same type
CDH13 c.1539-109T>C Benign ★★ same type
CDH13 c.1681+64T>C Benign ★★ same type
CDH13 c.1682-151C>T Benign ★★ same type
CDH13 c.1682-180G>A Benign ★★ same type
CDH13 c.1682-59A>G Benign ★★ same type
CDH13 c.1682-62G>A Benign ★★ 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/cdh13-p-arg99gln (accessed [today's date]).

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