GALC

Chr 14AR

galactosylceramidase

The protein encoded by this gene is a lysosomal enzyme that hydrolyzes galactose ester bonds in galactosylceramide, galactosylsphingosine, lactosylceramide, and monogalactosyldiglyceride. Mutations cause Krabbe disease (globoid cell leukodystrophy) through autosomal recessive inheritance. The pathogenic mechanism involves deficiency of this galactocerebrosidase enzyme leading to accumulation of toxic galactolipid substrates in the nervous system.

OMIMResearchSummary from RefSeq, OMIM, UniProt
LOFmechanismARLOEUF 0.941 OMIM phenotype
Clinical SummaryGALC
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Gene-Disease Validity (ClinGen)
Krabbe disease · ARDefinitive

Definitive — sufficient evidence for diagnostic panels

Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.
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Clinical Trials
3 active or recruiting trials — potential therapeutic options may be available
Some data sources returned errors (1)

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Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
0.94LOEUF
pLI 0.000
Z-score 1.88
OE 0.69 (0.510.94)
Tolerant

Typical tolerance to LoF variation

Missense Constraint
0.19Z-score
OE missense 0.97 (0.891.06)
365 obs / 375.1 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.69 (0.510.94)
00.351.4
Missense OE0.97 (0.891.06)
00.61.4
Synonymous OE1.01
01.21.6
LoF obs/exp: 29 / 42.2Missense obs/exp: 365 / 375.1Syn Z: -0.07

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

GALC · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

3D Protein StructureAlphaFold
Clinical Literature
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