Type Diseases Database OMIM Gene Locus Enzyme Name Type 1 5056 230400 GALT 9p13 galactose-1-phosphate uridyl transferase classic galactosemia Type 2 29829 230200 GALK1 17q24 galactokinase galactokinase deficiency Type 3 29842 230350 GALE 1p36-p35 UDP galactose epimerase galactose epimerase deficiency, UDP-Galactose-4-epimerase deficiency