Is AGAP1 p.Val377Met (c.1129G>A) pathogenic?

AGAP1 p.Val377Met (c.1129G>A) is classified Uncertain significance in AGAP1 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-06-29). AlphaMissense: likely benign (0.1138); Ultra-rare (popmax 0.0329%, mid).

How common is AGAP1 p.Val377Met (c.1129G>A) in the general population?

AGAP1 p.Val377Met (c.1129G>A) is ultra-rare (popmax 0.0329%, mid) (gnomAD).

What do computational predictors say about AGAP1 p.Val377Met (c.1129G>A)?

AlphaMissense predicts likely benign (score 0.1138) — an in-silico prediction, not a clinical call.

AGAP1 p.Val377Met

c.1129G>A · rs758081071 · VCV2897886

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1138 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0329%, mid)

Missense predictors

1/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.1138	likely benign
REVEL	0.254	benign-leaning
SaProt	LLR -10.05	damaging
⇒ SaProt calls this damaging; AlphaMissense and REVEL do not.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 4.8	GERP 0.96, phastCons 1
Regional constraint	o/e 0.88	unconstrained · MANE · 546 kb · p 0.00065 · regional, not allelic
Overall
CADD	25.6	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

Grpmax group 0.0329% Middle Eastern · 2/6,084 alleles

Filtering AF 0.0058% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00372%

Overall 0.00459% 74/1,613,890 alleles · ultra-rare exomes 71/1,461,790 · genomes 3/152,100 · joint denominator

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.0329%	3,042
East Asian	0.0111%	8,976
Remaining individualsnot grpmax-eligible	0.0064%	15,621
European (non-Finnish)	0.00517%	19,344
Admixed American	0.00167%	59,966
Finnishnot grpmax-eligible	0.00156%	64,020

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: AGAP1
Protein: p.Val377Met
Coding: c.1129G>A
MANE Select: NM_001037131
dbSNP: rs758081071
Type: single nucleotide variant
Location: chr2:235883423 (GRCh38)
Gene constraint: LOEUF 0.366 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 72.01 · 2 PDB
Residue 377: the ph domain

Full AGAP1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

AGAP1 p.Ala418Ser Uncertain significance ★★ ⚠ same type
AGAP1 p.Ala52Ser Uncertain significance ★★ ⚠ same type
AGAP1 p.Ala570Gly Uncertain significance ★★ same type
AGAP1 p.Ala809Ser Uncertain significance ★★ ⚠ same type
AGAP1 p.Arg14Trp Uncertain significance ★★ ⚠ same type
AGAP1 p.Arg313His Uncertain significance ★★ ⚠ same type
AGAP1 p.Arg696Trp Uncertain significance ★★ ⚠ same type
AGAP1 p.Arg770Cys 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/agap1-p-val377met (accessed [today's date]).

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