Lactose degradation and galactose metabolism (WP546)

Saccharomyces cerevisiae

Based on


Jessica Heckman , Daniela Digles , Egon Willighagen , Kristina Hanspers , Denise Slenter , Marvin Martens , and Eric Weitz


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Saccharomyces cerevisiae



Pathway Ontology

galactose metabolic pathway lactose degradation pathway


Label Type Compact URI Comment
UDP-galactose Metabolite chebi:67119
alpha-D-Galactose Metabolite chebi:28061
H2O Metabolite chebi:15377
Alpha-D-Galactose-1-Phosphate Metabolite wikidata:Q3082858
UDP-D-glucose Metabolite chebi:46229
beta-D-Glucose Metabolite chebi:15903
glucose-1-phosphate (closed form) Metabolite chebi:16077
ATP Metabolite cas:1927-31-7
lactose Metabolite cas:63-42-3
ADP Metabolite cas:58-64-0
glucose-6-phosphate Metabolite chebi:75150
PGM2 GeneProduct sgd:S000004711
GAL10 GeneProduct sgd:S000000223 GAL10 bifunctional protein
GAL7 GeneProduct sgd:S000000222
GAL10 GeneProduct ensembl:YBR019C
PGM1 GeneProduct sgd:S000001610
GAL1 GeneProduct sgd:S000000224


  1. UDPgalactose 4-epimerase from Saccharomyces cerevisiae. A bifunctional enzyme with aldose 1-epimerase activity. Majumdar S, Ghatak J, Mukherji S, Bhattacharjee H, Bhaduri A. Eur J Biochem. 2004 Feb;271(4):753–9. PubMed Europe PMC Scholia