Is AGPS p.Arg27Pro (c.80G>C) pathogenic?

AGPS p.Arg27Pro (c.80G>C) is classified Uncertain significance in AGPS (ClinVar, Single submitter, 1 submitter; last evaluated 2022-07-27). AlphaMissense: likely benign (0.0995); Absent from gnomAD v4.1; Associated with Inborn genetic diseases.

What condition is associated with AGPS p.Arg27Pro (c.80G>C)?

AGPS p.Arg27Pro (c.80G>C) is associated with Inborn genetic diseases (ClinVar).

How common is AGPS p.Arg27Pro (c.80G>C) in the general population?

AGPS p.Arg27Pro (c.80G>C) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about AGPS p.Arg27Pro (c.80G>C)?

AlphaMissense predicts likely benign (score 0.0995) — an in-silico prediction, not a clinical call.

AGPS p.Arg27Pro

c.80G>C · rs1685058142 · VCV2303808

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0995 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/2 damaging

AlphaMissense, SaProt · REVEL indeterminate

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.0995	likely benign
REVEL	0.366	indeterminate
SaProt	LLR -5.82	tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL is indeterminate.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 2.8	GERP -2.2, phastCons 0.62
Regional constraint	o/e 1.09	unconstrained · MANE · 244 bp · p 0.32 · regional, not allelic
Overall
CADD	13.85	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: AGPS
Protein: p.Arg27Pro
Coding: c.80G>C
MANE Select: NM_003659
dbSNP: rs1685058142
Type: single nucleotide variant
Location: chr2:177392869 (GRCh38)
Gene constraint: LOEUF 0.408 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 89.27
Residue 27: the 'disordered' region

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

Disease context

Inborn genetic diseases — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

AGPS p.Arg27Trp Uncertain significance ★ ⚠ same residue
AGPS p.Arg27= Likely benign ★ same residue
AGPS p.Arg265Gln Uncertain significance ★★ ⚠ same condition
AGPS p.Asn649Ser Uncertain significance ★★ ⚠ same condition
AGPS p.Asp590His Uncertain significance ★★ ⚠ same condition
AGPS p.Gly9Ala Uncertain significance ★★ ⚠ same condition
AGPS p.Leu120Val Uncertain significance ★★ ⚠ same condition
AGPS p.Phe450Leu 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/agps-p-arg27pro (accessed [today's date]).

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