Is FPR1 p.Arg190Ser (c.570G>C) pathogenic?

FPR1 p.Arg190Ser (c.570G>C) is classified Uncertain significance in FPR1 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-07-27). AlphaMissense: ambiguous (0.447); Very rare (popmax 0.00833%, amr); Associated with gingival disorder.

What condition is associated with FPR1 p.Arg190Ser (c.570G>C)?

FPR1 p.Arg190Ser (c.570G>C) is associated with gingival disorder (ClinVar).

How common is FPR1 p.Arg190Ser (c.570G>C) in the general population?

FPR1 p.Arg190Ser (c.570G>C) is very rare (popmax 0.00833%, amr) (gnomAD).

What do computational predictors say about FPR1 p.Arg190Ser (c.570G>C)?

AlphaMissense predicts ambiguous (score 0.447) — an in-silico prediction, not a clinical call.

FPR1 p.Arg190Ser

c.570G>C · rs773162997 · VCV856172

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

ambiguous

0.447 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00833%, amr)

Missense predictors

0/2 damaging

REVEL, SaProt · AlphaMissense no call

Conditions

gingival disorder

Computational evidence

Protein change
AlphaMissense	0.447	ambiguous
REVEL	0.098	moderately benign-leaning
SaProt	LLR -7.22	tolerated
⇒ REVEL and SaProt both call this tolerated; AlphaMissense makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -1.2	GERP -0.21
Regional constraint	o/e 0.90	unconstrained · MANE · 1,049 bp · p 0.031 · regional, not allelic
Overall
CADD	7.088	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 0.00833% Admixed American · 5/59,996 alleles

Filtering AF 0.00323% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00207%

Overall 0.000434% 7/1,614,008 alleles · very rare

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.00833%	11,999
Remaining individualsnot grpmax-eligible	0.0016%	62,488
European (non-Finnish)	8.47e-05%	1,180,032

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: FPR1
Protein: p.Arg190Ser
Coding: c.570G>C
MANE Select: NM_002029
dbSNP: rs773162997
Type: single nucleotide variant
Location: chr19:51746425 (GRCh38)
Gene constraint: LOEUF 1.921 · pLI 0.13 (gnomAD)
Structure: AlphaFold pLDDT 84.17 · 5 PDB
Residue 190: a UniProt-annotated variant site (confers resistance to y. pestis infection by protecting immune cells from the type iii secretion system t3ss; reduces t3ss-mediated translocation of effector proteins into neutrophils and macrophages; impairs monocyte chemotaxis towards fmlf and y. pestis; no effect on protein expression and localization at the cell surface); an α-helix

Full FPR1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

gingival disorder — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

FPR1 p.Arg190Trp Benign ★★ same residue
FPR1 p.Ala225Val Uncertain significance ★★ ⚠ same condition
FPR1 p.Ala315Thr Uncertain significance ★★ ⚠ same condition
FPR1 p.Ile146Val Uncertain significance ★★ ⚠ same condition
FPR1 p.Ile147Thr Uncertain significance ★★ ⚠ same condition
FPR1 p.Ile216Val Uncertain significance ★★ ⚠ same condition
FPR1 p.Ile228Phe Uncertain significance ★★ ⚠ same condition
FPR1 p.Met197Ile Uncertain significance ★★ ⚠ same condition

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/fpr1-p-arg190ser (accessed [today's date]).

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