Enhancing the catalytic efficiency of M32 carboxypeptidase by semi-rational design and its applications in food taste improvement.

Our research has revealed that the strategy based on protein sequence evolution and computational residue mutation energy has improved the catalytic efficiency of BmeCPM32. Molecular dynamics simulations have revealed that a smaller substrate binding pocket and increased enzyme-substrate affinity are the reasons for enhancing catalytic efficiency, Furthermore the number of hydrogen bonds and solvent and surface area, which may contribute to the improvement of thermostability. Finally, the de-bittering effect of BmeCPM32-M2 in soy protein isolate hydrolysate suggests its potential in developing palatable protein components. This article is protected by copyright. All rights reserved.