NAD-dependent glycerol-3-phosphate dehydrogenase (GPDH) catalyses the interconversion of dihydroxyacetone phosphate and L-glycerol-3-phosphate. This family represents the N-terminal NAD-binding domain [<cite idref="PUB00014289"/>]. Glycerol-3-phosphate dehydrogenase, NAD-dependent, N-terminal