Is CERT1 p.Ala257Pro (c.769G>C) pathogenic?

CERT1 p.Ala257Pro (c.769G>C) is classified Uncertain significance in CERT1 (ClinVar, Single submitter, 1 submitter; last evaluated 2022-09-06). AlphaMissense: likely pathogenic (0.9924); Absent from gnomAD v4.1.

How common is CERT1 p.Ala257Pro (c.769G>C) in the general population?

CERT1 p.Ala257Pro (c.769G>C) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about CERT1 p.Ala257Pro (c.769G>C)?

AlphaMissense predicts likely pathogenic (score 0.9924) — an in-silico prediction, not a clinical call.

CERT1 p.Ala257Pro

c.769G>C · rs2479084258 · VCV2442565

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.9924 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

2/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.9924	likely pathogenic
REVEL	0.24	benign-leaning
SaProt	LLR -15.83	damaging
⇒ AlphaMissense and SaProt call this damaging; REVEL does not.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.7	GERP 2.8, phastCons 1
Regional constraint	o/e 0.00	constrained · MANE · 45 bp · p 1.7e-05 · regional, not allelic
Overall
CADD	29.8	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

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: CERT1
Protein: p.Ala257Pro
Coding: c.769G>C
MANE Select: NM_001379029
dbSNP: rs2479084258
Type: single nucleotide variant
Location: chr5:75416944 (GRCh38)
Gene constraint: LOEUF 0.656 · pLI 0.10 · ClinGen HI 0/3 (gnomAD)
Structure: AlphaFold pLDDT 77.75 · 27 PDB

Full CERT1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CERT1 p.Ser135Phe Likely pathogenic ★★ same type
CERT1 p.Thr166Ala Pathogenic/Likely pathogenic ★★ ⚠ same type
CERT1 c.-195C>T Uncertain significance ★★ same type
CERT1 p.Ala538Val Uncertain significance ★★ ⚠ same type
CERT1 p.Asp80Asn Uncertain significance ★★ ⚠ same type
CERT1 p.Cys185Phe Uncertain significance ★★ ⚠ same type
CERT1 p.Gly452Asp Uncertain significance ★★ ⚠ same type
CERT1 p.Lys48Asn 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/cert1-p-ala257pro (accessed [today's date]).

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