Is GALC p.Ala28Ser (c.82G>T) pathogenic?

GALC p.Ala28Ser (c.82G>T) is classified Uncertain significance in GALC (ClinVar, Single submitter, 1 submitter; last evaluated 2020-10-19). AlphaMissense: likely benign (0.1058); Absent from gnomAD v4.1; Associated with Krabbe disease.

What condition is associated with GALC p.Ala28Ser (c.82G>T)?

GALC p.Ala28Ser (c.82G>T) is associated with Krabbe disease (ClinVar).

How common is GALC p.Ala28Ser (c.82G>T) in the general population?

GALC p.Ala28Ser (c.82G>T) is absent from gnomAD v4.1 (gnomAD).

How is Krabbe disease inherited?

Typically Autosomal recessive (Orphanet). A genetic counselor can assess individual risk for a family.

What do computational predictors say about GALC p.Ala28Ser (c.82G>T)?

AlphaMissense predicts likely benign (score 0.1058) — an in-silico prediction, not a clinical call.

GALC p.Ala28Ser

c.82G>T · rs776663863 · VCV1805604

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1058 · ACMG-weighted

gnomAD v4.1

Not reported

no allele count reported in gnomAD v4.1 (AN 1,579,060)

Missense predictors

0/2 damaging

AlphaMissense, SaProt · REVEL no call

Conditions

Krabbe disease

Computational evidence

Protein change
AlphaMissense	0.1058	likely benign
REVEL	0.33	indeterminate
SaProt	LLR -8.46	tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 1.2	GERP 1.4, phastCons 0.004
Regional constraint	o/e 1.03	unconstrained · MANE · 58 kb · p 0.37 · regional, not allelic
Overall
CADD	16.05	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

No allele count reported in gnomAD v4.1 (AN 1,579,060). 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: GALC
Protein: p.Ala28Ser
Coding: c.82G>T
MANE Select: NM_000153
dbSNP: rs776663863
Type: single nucleotide variant
Location: chr14:87993083 (GRCh38)
Gene constraint: LOEUF 1.019 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 94.56

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

Disease context

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

For Krabbe disease (Orphanet):

Inheritance: Autosomal recessive
Onset: Adolescent, Adult, Childhood, Infancy, Neonatal
Prevalence: 1-9 / 1 000 000 (United States)

Similar variants

GALC p.Ala28Thr Uncertain significance ★★ ⚠ same residue
GALC p.Ala28Val Uncertain significance ★ ⚠ same residue
GALC p.Ala28= Likely benign ★ same residue
GALC p.Ala28Leu Uncertain significance ★ same residue
GALC c.1033+1G>A Likely pathogenic ★★ same condition
GALC c.1034-1G>C Pathogenic/Likely pathogenic ★★ same condition
GALC c.1034-2A>G Pathogenic/Likely pathogenic ★★ same condition
GALC c.1161+2T>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/galc-p-ala28ser (accessed [today's date]).

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