Is RTN2 p.Gly28= (c.84G>A) pathogenic?

RTN2 p.Gly28= (c.84G>A) is classified Likely benign in RTN2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-04-14). Absent from gnomAD v4.1; Associated with Spastic paraplegia.

What condition is associated with RTN2 p.Gly28= (c.84G>A)?

RTN2 p.Gly28= (c.84G>A) is associated with Spastic paraplegia (ClinVar).

How common is RTN2 p.Gly28= (c.84G>A) in the general population?

RTN2 p.Gly28= (c.84G>A) is absent from gnomAD v4.1 (gnomAD).

RTN2 p.Gly28=

c.84G>A · rs2513744165 · VCV2801575

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

Spastic paraplegia

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	<0.2	no splice effect predicted · four deltas, not one · how we know
Constraint at this position
Conservation	phyloP 0.08	GERP -3.3, phastCons 0.92
Overall
CADD	9.261	PHRED · no single calibrated threshold — expert panels disagree

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: RTN2
Protein: p.Gly28=
Coding: c.84G>A
MANE Select: NM_005619
dbSNP: rs2513744165
Type: single nucleotide variant
Location: chr19:45495001 (GRCh38)
Gene constraint: LOEUF 0.748 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 50.99
Residue 28: a UniProt-annotated variant site (in hmnr11; likely pathogenic); the 'disordered' region

Full RTN2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Spastic paraplegia — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

RTN2 p.Gly28Glu Uncertain significance ★★ ⚠ same residue
RTN2 p.Glu50Ter Pathogenic/Likely pathogenic ★★ same condition
RTN2 c.1497+3G>A Uncertain significance ★★ same condition
RTN2 p.Ala529Thr Uncertain significance ★★ ⚠ same condition
RTN2 p.Arg152Pro Uncertain significance ★★ ⚠ same condition
RTN2 p.Arg252Trp Uncertain significance ★★ ⚠ same condition
RTN2 p.Arg398Cys Uncertain significance ★★ ⚠ same condition
RTN2 p.Arg447Gln 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/rtn2-p-gly28 (accessed [today's date]).

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