The Conversion of Triose Phosphates to Phosphoglycerates Occurs in Two Steps

The Conversion of Triose Phosphates to Phosphoglycerates Occurs in Two Steps 

The first reaction is catalyzed by the enzyme 3-phos-phoglyceraldehyde dehydrogenase. 

In the second step leading to glycerate-3-phosphate, a phosphate group is transferred from glycerate-1,3-bisphos-phate to ADP. This reaction is catalyzed by 3-phosphoglyc-erate kinase. 

In the two steps catalyzed by 3-phosphoglyceraldehyde dehydrogenase and 3-phosphoglycerate kinase, the oxidation of glyceraldehyde-3-phosphate to glycerate-3-phosphate is coupled to the regeneration of ATP. 

Interconversion of glycerate-3-phosphate and glycerate-2-phosphate, catalyzed by phosphoglyceromutase. The reaction closely resembles that catalyzed by 0 II c— cr 1 0 II c—cr 0 II c—cr 1 

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The Conversion of Triose Phosphates to Phosphoglycerates Occurs in Two Steps The Three-Carbon Phosphorylated Acids Constitute a Third Metabolic Pool... 

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