This family comprises the C-terminal domain of saccharopine dehydrogenase. In some organisms this enzyme is found as a bifunctional polypeptide with lysine ketoglutarate reductase. The saccharopine dehydrogenase can also function as a saccharopine reductase.

1: Three-dimensional structure of meso-diaminopimelic acid dehydrogenase from Corynebacterium glutamicum. Scapin G, Reddy SG, Blanchard JS; Biochemistry. 1996;35:13540-13551. PMID:8885833

2: Crystal structure of saccharopine reductase from Magnaporthe grisea, an enzyme of the alpha-aminoadipate pathway of lysine biosynthesis. Johansson E, Steffens JJ, Lindqvist Y, Schneider G; Structure Fold Des 2000;8:1037-1047. PMID:11080625