Elsevier Inc. glycolysis pathway gluconeogenesis pathway glyceraldehyde-3-phosphate sedoheptulose-7-phosphate nucleotide metabolic pathway fatty acid biosynthetic pathway cholesterol biosynthetic pathway NADPH2 NADPH1 Pgd Rpia Rpe Tkt Taldo1 Tkt(2) antioxidation Pgls G6pd fructose-6-phosphate (2) ---> glycolysis pathway ribose-5-phosphate ---> nucleotide metabolic pathway sedoheptulose-7-phosphate <--> ribose-5-phosphate xylulose 5-phosphate <--> ribulose-5-phosphate glucose-6-phosphate ---> NADPH1 fructose-6-phosphate <--> sedoheptulose-7-phosphate ribulose-5-phosphate <--> ribose-5-phosphate glyceraldehyde-3-phosphate <--> erythrose 4-phosphate xylulose 5-phosphate <--> fructose-6-phosphate (2) 6-phosphogluconolactone ribulose-5-phosphate glyceraldehyde-3-phosphate (2) fructose-6-phosphate fructose-6-phosphate (2) glucose-6-phosphate glucose-6-phosphate ---> 6-phosphogluconolactone xylulose 5-phosphate ribose-5-phosphate glyceraldehyde-3-phosphate <--> xylulose 5-phosphate 6-phosphogluconate 6-phosphogluconolactone ---> 6-phosphogluconate 6-phosphogluconate ---> NADPH2 6-phosphogluconate ---> ribulose-5-phosphate NADPH1 ---> fatty acid biosynthetic pathway NADPH2 ---> cholesterol biosynthetic pathway erythrose 4-phosphate erythrose 4-phosphate <--> glyceraldehyde-3-phosphate (2) glucose-6-phosphate ---> glycolysis pathway glyceraldehyde-3-phosphate (2) ---> glycolysis pathway