Galactose utilization in S. cerevisiae

Galactose utilization requires the action of products of each of four galactose-utilization (GAL) genesGalactose utilization requires the action of products of each of four galactose-utilization (GAL) genes

UAsG UAsG UAsG UAsG ,_L_, l_’ ‘_l r-J—l r-L-I l_’ r-‘-1 l_' n l I - I I - I l Chromosome 12 Chromosome 2 I I I UDP galactose Galactose-1- Permease Galactokinase - - phosphate l l 4-eplmerase uridyltransferase Extracellular Intracellular Galactose UDP l UDP l Glucose-1- . —-> —-> —*Glycolysus galactose galactose phosphate galactose glucose phosphate