phosphoenolpyruvate
Quick Summary
Phosphoenolpyruvate (PEP) is a crucial intermediate compound in carbohydrate metabolism. It is formed from pyruvate, a process that requires significant energy input, often utilizing ATP. This conversion is a key step in gluconeogenesis, the synthesis of sugars from non-carbohydrate precursors, and is essential for maintaining blood glucose levels. PEP also plays a role in glycolysis, the breakdown of glucose, where it serves as a precursor for ATP production. The enzyme phosphofructokinase is involved in regulating the breakdown of glucose, which ultimately leads to the formation of pyruvic acid.12345
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metabolismThe formation of ATP… reacts with 2-phosphoglycerate to form phosphoenolpyruvate (PEP), water being lost from 2-phosphoglycerate in the process. Phosphoenolpyruvate acts as the second source of ATP in glycolysis. The transfer of the phosphate group from PEP to ADP, catalyzed by pyruvate kinase [10], is also highly exergonic and is thus virtually irreversible under…
Read More… reacts with 2-phosphoglycerate to form phosphoenolpyruvate (PEP), water being lost from 2-phosphoglycerate in the process. Phosphoenolpyruvate acts as the second source of ATP in glycolysis. The transfer of the phosphate group from PEP to ADP, catalyzed by pyruvate kinase [10], is also highly exergonic and is thus virtually irreversible under…
Read More- metabolismCoarse control
…pyruvate or substances catabolized to PEP or pyruvate are added to the medium, however, further synthesis of the two enzymes is speedily repressed.
Read More…pyruvate or substances catabolized to PEP or pyruvate are added to the medium, however, further synthesis of the two enzymes is speedily repressed.
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