Is GABBR2 p.Arg102= (c.306G>A) pathogenic?

GABBR2 p.Arg102= (c.306G>A) is classified Likely benign in GABBR2 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-07-17). No allele count reported in gnomAD v4.1 (AN 1,527,164); Associated with Epileptic encephalopathy.

What condition is associated with GABBR2 p.Arg102= (c.306G>A)?

GABBR2 p.Arg102= (c.306G>A) is associated with Epileptic encephalopathy (ClinVar).

How common is GABBR2 p.Arg102= (c.306G>A) in the general population?

GABBR2 p.Arg102= (c.306G>A) is no allele count reported in gnomAD v4.1 (AN 1,527,164) (gnomAD).

GABBR2 p.Arg102=

c.306G>A · rs1830931081 · VCV2905980

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Not reported

no allele count reported in gnomAD v4.1 (AN 1,527,164)

Conditions

Epileptic encephalopathy

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 1.3	GERP 0.54, phastCons 1
Overall
CADD	13.1	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

No allele count reported in gnomAD v4.1 (AN 1,527,164). This is missing data, not an absence: the variant may or may not be present in gnomAD. Rarity (ACMG PM2) and BA1/BS1 cannot be assessed for it.

Variant & gene context

Gene: GABBR2
Protein: p.Arg102=
Coding: c.306G>A
MANE Select: NM_005458
dbSNP: rs1830931081
Type: single nucleotide variant
Location: chr9:98708432 (GRCh38)
Gene constraint: LOEUF 0.394 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 78.00 · 26 PDB
Residue 102: a β-strand

Full GABBR2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Epileptic encephalopathy — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

GABBR2 p.Gly693Trp Pathogenic ★★ same condition
GABBR2 p.Ala444Thr Uncertain significance ★★ ⚠ same condition
GABBR2 p.Ala580Ser Uncertain significance ★★ ⚠ same condition
GABBR2 p.Ala69Pro Uncertain significance ★★ ⚠ same condition
GABBR2 p.Ala708Ser Uncertain significance ★★ ⚠ same condition
GABBR2 p.Arg301His Uncertain significance ★★ ⚠ same condition
GABBR2 p.Arg48Trp Uncertain significance ★★ ⚠ same condition
GABBR2 p.Arg637Gln 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/gabbr2-p-arg102 (accessed [today's date]).

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