Inhibition of phosphofructokinase by fructose 1,6-diphosphatase in mammalian systems: protein-protein interaction or fructose 1,6-diphosphate trapping?

Inhibition of phosphofructokinase by fructose 1,6-diphosphatase in mammalian systems: protein-protein interaction or fructose 1,6-diphosphate trapping?