Is AMER3 p.Arg802Trp (c.2404C>T) pathogenic?

AMER3 p.Arg802Trp (c.2404C>T) is classified Uncertain significance in AMER3 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-08-28). AlphaMissense: likely benign (0.0514); Very rare (popmax 0.00696%, amr).

How common is AMER3 p.Arg802Trp (c.2404C>T) in the general population?

AMER3 p.Arg802Trp (c.2404C>T) is very rare (popmax 0.00696%, amr) (gnomAD).

What do computational predictors say about AMER3 p.Arg802Trp (c.2404C>T)?

AlphaMissense predicts likely benign (score 0.0514) — an in-silico prediction, not a clinical call.

AMER3 p.Arg802Trp

c.2404C>T · rs140869723 · VCV2621876

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0514 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00696%, amr)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0514	likely benign
REVEL	0.012	strongly benign-leaning
SaProt	LLR -7.84	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -1.9	GERP -2.4
Regional constraint	o/e 1.05	unconstrained · MANE · 2,582 bp · p 0.068 · regional, not allelic
Overall
CADD	2.271	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 0.00696% Admixed American · 4/57,452 alleles

Filtering AF 0.00232% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00139%

Overall 0.000438% 7/1,598,256 alleles · very rare

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.00696%	14,363
East Asian	0.00226%	44,190
Remaining individualsnot grpmax-eligible	0.00162%	61,882
European (non-Finnish)	8.52e-05%	1,173,162

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: AMER3
Protein: p.Arg802Trp
Coding: c.2404C>T
MANE Select: NM_152698
dbSNP: rs140869723
Type: single nucleotide variant
Location: chr2:130764476 (GRCh38)
Structure: AlphaFold pLDDT 45.30
Residue 802: the 'disordered' region

Full AMER3 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

AMER3 p.Ala175Val Uncertain significance ★ ⚠ same type
AMER3 p.Ala25Thr Uncertain significance ★ ⚠ same type
AMER3 p.Ala345Ser Uncertain significance ★ ⚠ same type
AMER3 p.Ala402Asp Uncertain significance ★ ⚠ same type
AMER3 p.Ala557Thr Uncertain significance ★ ⚠ same type
AMER3 p.Ala55Thr Uncertain significance ★ ⚠ same type
AMER3 p.Ala579Thr Uncertain significance ★ ⚠ same type
AMER3 p.Ala588Pro 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/amer3-p-arg802trp (accessed [today's date]).

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