Is CPE p.Asn246Ser (c.737A>G) pathogenic?

CPE p.Asn246Ser (c.737A>G) is classified Uncertain significance in CPE (ClinVar, Single submitter, 2 submitters; last evaluated 2024-05-02). AlphaMissense: likely benign (0.2302); Very rare (popmax 0.00834%, amr); Associated with Inborn genetic diseases.

What condition is associated with CPE p.Asn246Ser (c.737A>G)?

CPE p.Asn246Ser (c.737A>G) is associated with Inborn genetic diseases (ClinVar).

How common is CPE p.Asn246Ser (c.737A>G) in the general population?

CPE p.Asn246Ser (c.737A>G) is very rare (popmax 0.00834%, amr) (gnomAD).

What do computational predictors say about CPE p.Asn246Ser (c.737A>G)?

AlphaMissense predicts likely benign (score 0.2302) — an in-silico prediction, not a clinical call.

CPE p.Asn246Ser

c.737A>G · VCV3269151

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 2 submitters

AlphaMissense

likely benign

0.2302 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00834%, amr)

Missense predictors

0/2 damaging

AlphaMissense, SaProt · REVEL no call

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.2302	likely benign
REVEL	0.413	indeterminate
SaProt	LLR -9.10	tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 11	GERP 0.91, phastCons 1
Regional constraint	o/e 0.85	unconstrained · MANE · 118 kb · p 0.00025 · regional, not allelic
Overall
CADD	24.0	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 0.00834% Admixed American · 5/59,988 alleles

Filtering AF 0.00323% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00207%

Overall 0.00304% 49/1,613,872 alleles · very rare

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.00834%	11,998
East Asian	0.00669%	14,955
South Asian	0.00659%	15,181
Remaining individualsnot grpmax-eligible	0.0032%	31,237
African / African-American	0.00267%	37,455
European (non-Finnish)	0.00254%	39,331
Finnishnot grpmax-eligible	0.00156%	64,018

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: CPE
Protein: p.Asn246Ser
Coding: c.737A>G
MANE Select: NM_001873
Type: single nucleotide variant
Location: chr4:165482306 (GRCh38)
Gene constraint: LOEUF 0.565 · pLI 0.83 (gnomAD)
Structure: AlphaFold pLDDT 90.83
Residue 246: a UniProt-annotated variant site (in bdvs); the peptidase m14 domain

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

Disease context

Inborn genetic diseases — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

CPE p.Arg262Trp Uncertain significance ★★ ⚠ same condition
CPE p.Arg297Trp Uncertain significance ★★ ⚠ same condition
CPE p.Asp251Gly Uncertain significance ★★ ⚠ same condition
CPE p.Asp304Ala Uncertain significance ★★ ⚠ same condition
CPE p.Trp21Cys Uncertain significance ★★ ⚠ same condition
CPE p.Gln384= Likely benign ★★ same condition
CPE p.Gln384Ter Pathogenic ★ same condition
CPE p.Ala166Thr Uncertain significance ★ ⚠ same condition

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/cpe-p-asn246ser (accessed [today's date]).

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