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  • Title: Effects of fructose 2,6-bisphosphate and glucose 1,6-bisphosphate on phosphofructokinase from chicken erythrocytes.
    Author: Espinet C, Bartrons R, Carreras J.
    Journal: Comp Biochem Physiol B; 1988; 90(2):453-7. PubMed ID: 2970364.
    Abstract:
    1. Phosphofructokinase (EC 2.7.1.11) from chicken erythrocytes is activated by fructose 2,6-bisphosphate, glucose 1,6-bisphosphate and AMP, and it is inhibited by 2,3-bisphosphoglycerate and inositol hexaphosphate. 2. The stimulatory effects produced by the two bisphosphorylated hexoses are additive and the effects produced by fructose 2,6-bisphosphate and by AMP are synergistic. 3. The activatory effect produced by fructose 2,6-bisphosphate is counteracted by fructose 1,6-bisphosphate. 4. The inhibition produced by both 2,3-bisphosphoglycerate and inositol hexaphosphate is released by fructose 2,6-bisphosphate. 5. It is concluded that, like phosphofructokinase from mammalian tissues, the enzyme from chicken erythrocytes can be modulated by the relative concentrations of those metabolites.
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