Is GALC p.Pro330= (c.990A>G) pathogenic?

GALC p.Pro330= (c.990A>G) is classified Likely benign in GALC (ClinVar, Single submitter, 1 submitter; last evaluated 2024-10-15). Very rare (popmax 0.00178%, nfe); Associated with Krabbe disease.

What condition is associated with GALC p.Pro330= (c.990A>G)?

GALC p.Pro330= (c.990A>G) is associated with Krabbe disease (ClinVar).

How common is GALC p.Pro330= (c.990A>G) in the general population?

GALC p.Pro330= (c.990A>G) is very rare (popmax 0.00178%, nfe) (gnomAD).

How is Krabbe disease inherited?

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

GALC p.Pro330=

c.990A>G · rs370211494 · VCV1082331

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 0.00178%, nfe)

Conditions

Krabbe disease

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 -20	GERP -4.8
Overall
CADD	0.71	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00178% European (non-Finnish) · 21/1,179,550 alleles

Filtering AF 0.00114% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000971%

Overall 0.00136% 22/1,613,378 alleles · very rare exomes 19/1,461,244 · genomes 3/152,134 · joint denominator

Ancestry group	Frequency	1 in
European (non-Finnish)grpmax	0.00178%	56,169
African / African-American	0.00134%	74,876

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene: GALC
Protein: p.Pro330=
Coding: c.990A>G
MANE Select: NM_000153
dbSNP: rs370211494
Type: single nucleotide variant
Location: chr14:87965548 (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 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
GALC c.1251+1G>C Pathogenic/Likely pathogenic ★★ same condition
GALC c.1252-1G>C Pathogenic/Likely pathogenic ★★ same condition
GALC c.1338+1G>C Likely pathogenic ★★ same condition
GALC c.1671-1G>A Pathogenic/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-pro330 (accessed [today's date]).

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