21. A third enzyme, triokinase, is therefore required to phosphorylate glyceraldehyde, producing glyceraldehyde 3-phosphate. 22. A typical rearrangement reaction is that between the aldose glyceraldehyde and the ketose dihydroxyacetone in a chemical equilibrium. 23. The concept of Fischer, who had used glyceraldehyde as the prototype and assigned randomly its absolute configuration. 24. Glyceraldehyde -3-phosphate dehydrogenase ( GAPDH ) is an important enzyme used in reaction 6 of glycolysis.25. The D- in the name D-ribose refers to the stereochemistry of the D-glyceraldehyde . 26. Rather, it indicates the compound's stereochemistry relative to that of the dextrorotatory or levorotatory enantiomer of glyceraldehyde . 27. The GAIT complex consists of the proteins NS1-associated protein-1, and glyceraldehyde 3-phosphate dehydrogenase. 28. The evolved aldolase is capable of accepting both D-and L-glyceraldehyde in their non-phosphorylated form. 29. The word comes from combining glycerol and aldehyde, as glyceraldehyde is glycerol with one hydroxymethyl group oxidized to an aldehyde. 30. Triose phosphate catabolism switches over to MGS when phosphate concentrations are too low for glyceraldehyde -3-phosphate dehydrogenase activity.
