An α-amylase inhibitor gene from Phaseolus coccineus encodes a protein with potential for control of coffee berry borer (Hypothenemus hampei)

αAI-Pc1 has similar inhibitory efficiency at much lower concentrations than αAI-1 from Phaseolus vulgaris. A provisional explanation could be that P. coccineus seeds contain not only a higher concentration of αAIs than P. vulgaris, but also major iso-inhibitors. This could result in a different inhibitor potency when they are purified.