Description
Glucose-6-phosphate dehydrogenase (G6PD or G6PDH) (EC 1.1.1.49) is a cytosolic enzyme that catalyzes the chemical reaction:D-glucose 6-phosphate + NADP+ ↔ 6-phospho-D-glucono-1,5-lactone + NADPH + H+. This enzyme is in the pentose phosphate pathway, a metabolic pathway that supplies reducing energy to cells (such as erythrocytes) by maintaining the level of the co-enzyme nicotinamide adenine dinucleotide phosphate (NADPH).
Abbr
G6PDH, Recombinant (Leuconostoc mesenteroides)
Species
Leuconostoc mesenteroides
Applications
Glucose-6-phosphate dehydrogenase is used to test ketose reductase activity in developing maize endosperm.
Product Overview
Glucose 6-phosphate dehydrogenase (G-6-P-DH) is a key regulatory enzyme in the first step of the pentose phosphate pathway. G-6-P-DH is a glycoprotein with a molecular mass of 128 kDa (gel filtration).
Form
Type I, Lyophilized powder containing Ficoll and Tris buffer salts; Type II, ammonium sulfate suspension, Supplied in 3.2M ammonium sulfate containing 50mM Tris and 1mM magnesium chloride, pH 7.5.
Enzyme Commission Number
EC 1.1.1.49
Activity
Type I, 550-1,100 units/mg protein (biuret); Type II, > 550 units/mg protein (biuret).
Unit Definition
One unit will oxidize 1.0 μmole of D-glucose 6-phosphate to 6-phospho-D-gluconate per min in the presence of NAD at pH 7.8 at 30°C.
Synonyms
EC 1.1.1.49; NADP-glucose-6-phosphate dehydrogenase; Zwischenferment; D-glucose 6-phosphate dehydrogenase; glucose 6-phosphate dehydrogenase (NADP); NADP-dependent glucose 6-phosphate dehydrogenase; 6-phosphoglucose dehydrogenase; Entner-Doudoroff enzyme; glucose-6-phosphate 1-dehydrogenase; G6PDH; GPD; glucose-6-phosphate dehydrogenase; 9001-40-5