You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is NAD acts as a cofactor for all except and explain in detail?
Niacin (Vitamin B3) in biologically active form of NAD+ (nicotinamide adenine dinucleotide) and NADP+ (nicotinamide, adenine dinucleotide phosphate) act as cofactor for various enzymes such as
NADP+ Cofactor

Glucose-6-phosphate dehydrogenase (G-6-PD (glucose-6-PO4 to 6-phosphogluconate)
Glutathione reductase

Either NADP+ or NAD+  Cofactor


Glutamate dehydrogenase (glutamate → α-ketoglutarate + NH3)
Isocitrate dehydrogenase (isocitrate → oxalosuccinate) 

NAD+ Cofactor

Malate dehydrogenase (malate → oxaloacetate)
Alcohol dehydrogenase (ethanol → acetaldehyde
Lactate dehydrogenase (pyruvic acid → lactic acid)
Glyceraldehyde-3-phosphate dehydrogenase (glyceraldehyde 3P →1, 3 diphosphoglycerate)
α - Glycero-P-dehydrogenase
α -Ketoglutarate dehydrogenase (α – ketoglutarate → CoA)
Pyruvate dehydrogenase complex (PDC) (pyruvate →  CoA)