nad metabolites metabolism nampt schematic parp mammalian plain enzymes nicotinamide openi ribose adp polymerase
nad salvage biosynthesis pathways metabolic
metabolic pathways summary pathway fig glucose glycolysis phosphate pentose shunt
nad pathway biosynthesis metabolic synthesis mammals routes nmn riboside involved
metabolism nicotinamide nad adenine dinucleotide pyridine nucleotide synthesis biosynthesis cells pathway nicotinate adenosine nucleotides nadp nicotinic atp novo phosphate epimerase
nadph mitochondrial metabolic cytosolic nadp shuttle cytosol g6pd mitochondria pathway phosphate glucose malate pentose idh2 dehydrogenase ribose glud isocitrate nicotinamide