Is FFAR3 p.Pro82Arg (c.245C>G) pathogenic?

FFAR3 p.Pro82Arg (c.245C>G) is classified Uncertain significance in FFAR3 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-08-29). AlphaMissense: likely benign (0.1219); Very rare (popmax 0.000256%, nfe).

How common is FFAR3 p.Pro82Arg (c.245C>G) in the general population?

FFAR3 p.Pro82Arg (c.245C>G) is very rare (popmax 0.000256%, nfe) (gnomAD).

What do computational predictors say about FFAR3 p.Pro82Arg (c.245C>G)?

AlphaMissense predicts likely benign (score 0.1219) — an in-silico prediction, not a clinical call.

FFAR3 p.Pro82Arg

c.245C>G · VCV4256982

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1219 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.000256%, nfe)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.1219	likely benign
REVEL	0.04	moderately benign-leaning
SaProt	LLR -5.44	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 -0.1	GERP -1.9
Regional constraint	o/e 0.21	constrained · MANE · 359 bp · p 1.7e-22 · regional, not allelic
Overall
CADD	7.332	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 0.000256% European (non-Finnish) · 3/1,170,028 alleles

Filtering AF 6.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.9e-05%

Overall 0.000187% 3/1,601,790 alleles · very rare exomes 3/1,450,986 · genomes 0/150,804 · joint denominator

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: FFAR3
Protein: p.Pro82Arg
Coding: c.245C>G
MANE Select: NM_005304
Type: single nucleotide variant
Location: chr19:35359135 (GRCh38)
Gene constraint: LOEUF 1.874 · pLI 0.31 (gnomAD)
Structure: AlphaFold pLDDT 86.90 · 2 PDB

Full FFAR3 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

FFAR3 p.Ala256= Likely benign ★★ same type
FFAR3 p.Arg45His Benign ★★ same type
FFAR3 p.Met307Val Benign ★★ same type
FFAR3 p.Ser201= Likely benign ★★ same type
FFAR3 p.Ala103Thr Uncertain significance ★ ⚠ same type
FFAR3 p.Ala224Val Uncertain significance ★ ⚠ same type
FFAR3 p.Ala228Glu Uncertain significance ★ ⚠ same type
FFAR3 p.Ala285Asp 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/ffar3-p-pro82arg (accessed [today's date]).

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