1. 
   phosphoenolpyruvate
   An important metabolic intermediate. The enol (less stable) form of pyruvic acid is trapped as its phosphate ester, giving the molecule a high phosphate transfer potential. Formed from 2-phosphoglycerate by the action of enolase.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   phosphoenolpyruvate
   <biochemistry> An important metabolic intermediate. The enol (less stable) form of pyruvic acid is trapped as its phosphate ester, giving the molecule a high phosphate transfer potential. Formed from 2 phosphoglycerate by the action of enolase. ... (31 Dec 1997) ...
   Found op http://www.mondofacto.com/facts/dictionary?phosphoenolpyruvate
   
   
3. 
   phosphoenolpyruvate
   (from the article `metabolism`) The 3-phosphoglycerate in step [7] now forms 2-phosphoglycerate, in a reaction catalyzed by phosphoglyceromutase [8]. During step [9] the enzyme ... ...of these intermediates because they are continuously being removed for biosynthesis. The enzymes of the glyoxylate c...
   Found op http://www.britannica.com/eb/a-z/p/59
   
   

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