33663 PLN02649Thalassiosira pseudonana
GO:0004347 GO:0006094 GO:0006096 -
glucose-6-phosphate isomerase activity
Catalysis of the reaction: D-glucose 6-phosphate = D-fructose 6-phosphate.
The formation of glucose from noncarbohydrate precursors, such as pyruvate, amino acids and glycerol.
The chemical reactions and pathways resulting in the breakdown of a monosaccharide (generally glucose) into pyruvate, with the concomitant production of a small amount of ATP. Glycolysis begins with phosphorylation of a monosaccharide (generally glucose) on the sixth carbon by a hexokinase, and ends with the production of pyruvate. Pyruvate may be converted to ethanol, lactate, or other small molecules, or fed into the TCA cycle.