Is CAPRIN1 p.Arg458Pro (c.1373G>C) pathogenic?

CAPRIN1 p.Arg458Pro (c.1373G>C) is classified Uncertain significance in CAPRIN1 (ClinVar, Single submitter, 1 submitter; last evaluated 2026-05-01). AlphaMissense: likely benign (0.2451); Absent from gnomAD v4.1.

How common is CAPRIN1 p.Arg458Pro (c.1373G>C) in the general population?

CAPRIN1 p.Arg458Pro (c.1373G>C) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about CAPRIN1 p.Arg458Pro (c.1373G>C)?

AlphaMissense predicts likely benign (score 0.2451) — an in-silico prediction, not a clinical call.

CAPRIN1 p.Arg458Pro

c.1373G>C · VCV4874807

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.2451 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.2451	likely benign
REVEL	0.271	benign-leaning
SaProt	LLR -3.72	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 12	GERP 1.9, phastCons 1
Regional constraint	o/e 0.93	unconstrained · MANE · 23 kb · p 0.059 · regional, not allelic
Overall
CADD	27.9	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: CAPRIN1
Protein: p.Arg458Pro
Coding: c.1373G>C
MANE Select: NM_005898
Type: single nucleotide variant
Location: chr11:34090258 (GRCh38)
Gene constraint: LOEUF 0.372 · pLI 1.00 · ClinGen HI 2/3 (gnomAD)
Structure: AlphaFold pLDDT 58.64 · 6 PDB
Residue 458: a UniProt-annotated variant site (in nedlaad; likely pathogenic); a UniProt-annotated variant site (in nedlaad; likely pathogenic; 50% decrease of transcript and protein levels in patient-derived cells compared to controls)

Full CAPRIN1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CAPRIN1 p.Arg458Ter Pathogenic ★★ same residue
CAPRIN1 p.Arg132Cys Uncertain significance ★★ ⚠ same type
CAPRIN1 p.Gln206Arg Uncertain significance ★★ ⚠ same type
CAPRIN1 p.Pro424Leu Uncertain significance ★★ ⚠ same type
CAPRIN1 p.Pro528Thr Uncertain significance ★★ ⚠ same type
CAPRIN1 c.1122+19G>A Benign ★★ same type
CAPRIN1 c.217-5C>G Likely pathogenic ★ same type
CAPRIN1 c.688+5G>A Likely pathogenic ★ 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/caprin1-p-arg458pro (accessed [today's date]).

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