1.1.1.251 galactitol-1-phosphate 5-dehydrogenase galactitol degradation - 2.7.1.144 tagatose-6-phosphate kinase galactitol degradation - 2.7.1.200 protein-Npi-phosphohistidine-galactitol phosphotransferase galactitol degradation - 4.1.2.40 tagatose-bisphosphate aldolase galactitol degradation -