<prompt> Allosteric enzymes show the following characteristics, exceptCo-operative binding of substrateObey Sigmoid saturation kineticsEffector site overlap with the active siteActive site and effector site need not be located on the same subunit  <response>: In many allosteric enzymes the substrate binding site and the modulator binding sites are on different subunits, the catalytic C and regulatory R subunits, respectively. Co-operative binding of substrate.Obey Sigmoid saturation kinetics REF ; Katzung 12th ed. 