Anti-H6PD Polyclonal Antibody (HF993014)

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GDH/6PGL endoplasmic bifunctional protein (H6PD) is a ~88 kDa protein. Bifunctional enzyme localized in the lumen of the endoplasmic reticulum that catalyzes the first two steps of the oxidative branch of the pentose phosphate pathway/shunt, an alternative to glycolysis and a major source of reducing power and metabolic intermediates for biosynthetic processes. Has a hexose-6-phosphate dehydrogenase activity, with broad substrate specificity compared to glucose-6-phosphate 1-dehydrogenase/G6PD, and catalyzes the first step of the pentose phosphate pathway. In addition, acts as a 6-phosphogluconolactonase and catalyzes the second step of the pentose phosphate pathway. May have a dehydrogenase activity for alternative substrates including glucosamine 6-phosphate and glucose 6-sulfate. The main function of this enzyme is to provide reducing equivalents such as NADPH to maintain the adequate levels of reductive cofactors in the oxidizing environment of the endoplasmic reticulum.