Is CAPS2 p.Asn146Asp (c.436A>G) pathogenic?

CAPS2 p.Asn146Asp (c.436A>G) is classified Uncertain significance in CAPS2 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-05-14). AlphaMissense: likely benign (0.0863); Ultra-rare (popmax 0.0416%, eas).

How common is CAPS2 p.Asn146Asp (c.436A>G) in the general population?

CAPS2 p.Asn146Asp (c.436A>G) is ultra-rare (popmax 0.0416%, eas) (gnomAD).

What do computational predictors say about CAPS2 p.Asn146Asp (c.436A>G)?

AlphaMissense predicts likely benign (score 0.0863) — an in-silico prediction, not a clinical call.

CAPS2 p.Asn146Asp

c.436A>G · VCV3263269

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0863 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0416%, eas)

Missense predictors

0/2 damaging

AlphaMissense, REVEL

Computational evidence

Protein change
AlphaMissense	0.0863	likely benign
REVEL	0.166	moderately benign-leaning
⇒ AlphaMissense and REVEL both call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 1.4	GERP 0.46, phastCons 0.005
Overall
CADD	8.284	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.

⚠ Isoform check: AlphaMissense numbered on a different transcript (AM N203D vs ClinVar N146D) — verify the residue.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0416% East Asian · 17/40,914 alleles

Filtering AF 0.0264% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0217%

Overall 0.00206% 32/1,550,960 alleles · ultra-rare

Ancestry group	Frequency	1 in
East Asiangrpmax	0.0416%	2,407
Remaining individualsnot grpmax-eligible	0.00166%	60,066
European (non-Finnish)	0.00122%	81,894

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: CAPS2
Protein: p.Asn146Asp
Coding: c.436A>G
MANE Select: NM_017954 · reported on NM_001355024
Type: single nucleotide variant
Location: chr12:75316353 (GRCh38)
Structure: AlphaFold pLDDT 79.91

Full CAPS2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

RNF148 p.Gly146Val Uncertain significance ★ ⚠ same residue
CADPS2 c.3718-15A>C Benign ★★ same type
CADPS2 p.Ala298Thr Benign ★★ same type
CADPS2 p.Asp1088Asn Likely benign ★★ ⚠ same type
CADPS2 p.Glu1010Lys Benign ★★ same type
CADPS2 p.Leu154= Likely benign ★★ same type
CADPS2 p.Lys338= Benign ★★ same type
CADPS2 p.Met828Val 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/caps2-p-asn146asp (accessed [today's date]).

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