Abrin B chain and trypsin inhibitor isolated from Acacia confusa (ACTI) were covalently linked to form a chimeric protein (ANB-ACTI) with N-succinimidyl-3-(-2-pyridyldithio)propionate. The chimeric protein had 31% of trypsin inhibitory activity of ACTI and 7% of hemagglutinating activity of abrin B
Concanavalin A (Con A) and trypsin inhibitor isolated from Acacia confusa were covalently linked with N-succinimidyl-3-(2-pyridyldithio)propionate. Con A-A. confusa trypsin inhibitor (ACTI) conjugate covalently bound (Con A-ACTI) retained about 42% of the trypsin inhibitory activity present in the