phosphofructokinase

(noun)

any of a group of kinase enzymes that convert fructose phosphates to biphosphate

Related Terms

Examples of phosphofructokinase in the following topics:

  • The Energy-Requiring Steps of Glycolysis

    • The third step is the phosphorylation of fructose-6-phosphate, catalyzed by the enzyme phosphofructokinase.
    • In this pathway, phosphofructokinase is a rate-limiting enzyme.

  • The Entner–Doudoroff Pathway

    • They may lack enzymes essential for glycolysis, such as phosphofructokinase-1.

  • Control of Catabolic Pathways

    • The product of the hexokinase reaction is glucose-6-phosphate, which accumulates when a later enzyme, phosphofructokinase, is inhibited.
    • Phosphofructokinase is the main enzyme controlled in glycolysis.

  • Respiration and Proton Motive Force

    • With the help of phosphofructokinase, an additional ATP can be used to turn phosphorylate fructose 6-phosphate into fructose 1, 6-diphosphate.