H2O + L-glutamate + NAD(+) = 2-oxoglutarate + H(+) + NADH + NH4(+) H2O + L-glutamate + NADP(+) = 2-oxoglutarate + H(+) + NADPH + NH4(+) Subject to allosteric regulation. Activated by ADP. Inhibited by GTP and ATP (By similarity). Homohexamer. Expressed throughout the embryo during early stages before becoming localized in mesodermal tissue by stage 8. At stage 12 expression is concentrated in the posterior midgut. After stage 13 expression it is found in the anterior and posterior midgut, the hindgut, fat body, muscle, and central nervous system. In 3rd instar larvae expression is found in the leg disks, the wing pouch of the wing disk, the eye-antenna disk, and the developing brain medulla. Expressed at all stages. ADP can occupy the NADH binding site and activate the enzyme. Belongs to the Glu/Leu/Phe/Val dehydrogenases family.