Fructose 2-6 biphosphate is: (A) Intermediate of glycosis, (B) Positive allosteric regulation of PFK1 (Phospho-fructokinase 1), (C) Ne gative allosteric regulation of PFK1, (D) Positive allosteric regulation of PFK2
Answer is D. Fructose-2,6-bisphosphate(F-2,6-BP) increases the activity of phosphofructokinase.F-2,6-BP formed from fructose-6-phosphate by the action of an enzyme called PFK2Ref: DM Vasudevan, 7th edition, page no: 113