Tags: Protein.
PFK redirects here. PFK (Poulet Frit Kentucky) is also the name for KFC in Quebec. For the Polish hip-hop group see Paktofonika.Phosphofructokinase is a kinase enzyme that phosphorylates fructose 6-phosphate in glycolysis.The enzyme-catalysed transfer of a phosphoryl group from ATP is an important reaction in a wide variety of biological processes.