nano glutathione vs glutathione precursers Glutathione-responsive nano-vehicles as a promising platform for targeted intracellular drug and gene delivery Glutathione Metabolism - an overview

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Contents Historical background Main function Additional functions Sites of the pentose phosphate pathway Oxidative phase of the pentose phosphate pathway Oxidation of glucose 6-phosphate to 6-phosphoglucono--lactone G6PD expression and immune function Catalytic mechanism of G6PD Regulation of G6PD Hydrolysis of 6-phosphoglucono--lactone to 6-phosphogluconate Oxidative decarboxylation of 6-phosphogluconate to ribulose 5-phosphate Catalytic mechanism of 6-phosphogluconate dehydrogenase Non-oxidative phase of the pentose phosphate pathway Isomerization of ribulose 5-phosphate to ribose 5-phosphate Catalytic mechanism of phosphopentose isomerase Epimerization of ribulose 5-phosphate to xylulose 5-phosphate Catalytic mechanism of phosphopentose epimerase Transketolase Catalytic mechanism of transketolase Transaldolase Catalytic mechanism of transaldolase Step 1: aldol cleavage and intermediate formation Step 2: aldol condensation and product release The cells need for NADPH, ribose 5-phosphate, and ATP When the need for NADPH is much greater than that for ribose 5-phosphate or ATP When the need for NADPH and ATP is much greater than that for ribose 5-phosphate When the need for ribose 5-phosphate is much greater than that for NADPH When the needs for ribose 5-phosphate and NADPH are balanced References Historical background The first evidence of the pentose phosphate pathway emerged in the 1930s through the work of Otto Warburg , who received the Nobel Prize in Physiology or Medicine in 1931 for his work on cellular metabolism and respiratory enzymes