Galactose, one of the eight essential monosaccharides (Section 25.7), is biosynthesized
Chapter 25, Problem 25.54(choose chapter or problem)
Galactose, one of the eight essential monosaccharides (Section 25.7), is biosynthesized from UDP-glucose by galactose 4-epimerase, where UDP 5 uridylyl diphosphate (a ribonucleotide diphosphate; Section 28.1). The enzyme requires NAD1 for activity (Section 17.7), but it is not a stoichiometric reactant, and NADH is not a final reaction product. Propose a mechanism.
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