Is CLN3 p.Ala98Asp (c.293C>A) pathogenic?

CLN3 p.Ala98Asp (c.293C>A) is classified Uncertain significance in CLN3 (ClinVar, Single submitter, 1 submitter; last evaluated 2022-08-16). AlphaMissense: likely pathogenic (0.9529); Absent from gnomAD v4.1; Associated with neuronal ceroid lipofuscinosis.

What condition is associated with CLN3 p.Ala98Asp (c.293C>A)?

CLN3 p.Ala98Asp (c.293C>A) is associated with neuronal ceroid lipofuscinosis (ClinVar).

How common is CLN3 p.Ala98Asp (c.293C>A) in the general population?

CLN3 p.Ala98Asp (c.293C>A) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about CLN3 p.Ala98Asp (c.293C>A)?

AlphaMissense predicts likely pathogenic (score 0.9529) — an in-silico prediction, not a clinical call.

CLN3 p.Ala98Asp

c.293C>A · rs1361279384 · VCV1038914

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.9529 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

3/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

neuronal ceroid lipofuscinosis

Computational evidence

Protein change
AlphaMissense	0.9529	likely pathogenic
REVEL	0.834	moderately pathogenic-leaning
SaProt	LLR -10.63	damaging
⇒ AlphaMissense, REVEL and SaProt all call this damaging.
Splicing
SpliceAI	<0.2	all four deltas below 0.2 · G>C here scores Δ0.32 · evaluated, not missing
Constraint at this position
Conservation	phyloP 12	GERP 1.5, phastCons 1
Regional constraint	o/e 0.93	unconstrained · MANE · 14 kb · p 0.08 · regional, not allelic
Overall
CADD	31.0	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — 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: CLN3
Protein: p.Ala98Asp
Coding: c.293C>A
MANE Select: NM_001042432
dbSNP: rs1361279384
Type: single nucleotide variant
Location: chr16:28488592 (GRCh38)
Gene constraint: LOEUF 1.022 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure: AlphaFold pLDDT 81.81

Full CLN3 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

neuronal ceroid lipofuscinosis — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

CLN3 p.Ala98Val Uncertain significance ★ ⚠ same residue
CLN3 c.1056+1G>A Likely pathogenic ★★ same condition
CLN3 c.1056+1G>T Likely pathogenic ★★ same condition
CLN3 c.1056+3A>C Pathogenic/Likely pathogenic ★★ same condition
CLN3 c.1197+1G>A Pathogenic/Likely pathogenic ★★ same condition
CLN3 c.1198-1G>T Pathogenic/Likely pathogenic ★★ same condition
CLN3 c.125+1G>C Pathogenic ★★ same condition
CLN3 c.222+1G>A Likely pathogenic ★★ 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/cln3-p-ala98asp (accessed [today's date]).

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