1.2.1.52 2-oxoglutarate + CoA + NADP+ - 1.2.1.52 2-oxoglutarate + CoA + NADP+ NAD+ has 20% activity of NADP+ 1.2.1.52 2-oxoglutarate + CoA + NADP+ NAD+ has 4% reactivity of NADP+