Is AP2M1 p.Met77Val (c.229A>G) pathogenic?

AP2M1 p.Met77Val (c.229A>G) is classified Uncertain significance in AP2M1 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-03-10). AlphaMissense: likely benign (0.1387); Absent from gnomAD v4.1.

How common is AP2M1 p.Met77Val (c.229A>G) in the general population?

AP2M1 p.Met77Val (c.229A>G) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about AP2M1 p.Met77Val (c.229A>G)?

AlphaMissense predicts likely benign (score 0.1387) — an in-silico prediction, not a clinical call.

AP2M1 p.Met77Val

c.229A>G · VCV3680208

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1387 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/2 damaging

AlphaMissense, SaProt · REVEL no call

Computational evidence

Protein change
AlphaMissense	0.1387	likely benign
REVEL	0.31	indeterminate
SaProt	LLR -7.37	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 8.1	GERP 1.9, phastCons 1
Regional constraint	o/e 0.35	constrained · MANE · 4,753 bp · p 1.5e-32 · regional, not allelic
Overall
CADD	26.7	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

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: AP2M1
Protein: p.Met77Val
Coding: c.229A>G
MANE Select: NM_004068
Type: single nucleotide variant
Location: chr3:184179011 (GRCh38)
Gene constraint: LOEUF 0.182 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 89.44 · 3 PDB
Residue 77: an α-helix

Full AP2M1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

AP2M1 p.Met77Thr Uncertain significance ★ ⚠ same residue
AP2M1 p.Arg170Trp Pathogenic/Likely pathogenic ★★ same type
AP2M1 p.Ala28Thr Uncertain significance ★★ ⚠ same type
AP2M1 p.Arg169His Uncertain significance ★★ ⚠ same type
AP2M1 p.Arg199Gln Uncertain significance ★★ ⚠ same type
AP2M1 p.Arg40Trp Uncertain significance ★★ ⚠ same type
AP2M1 p.Arg44His Uncertain significance ★★ ⚠ same type
AP2M1 p.Cys246Arg 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/ap2m1-p-met77val (accessed [today's date]).

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