This study is to investigate if Tt APuX21 is a functional carbohydrate-binding module (CBM). The obtained data will help to reveal the binding specificity between Tt APuX21 and chemical bonds.

• 本研究旨在通过试验发现Tt APuX21的功能，即证明Tt APuX21是否确为有功能的碳水化合物结合结构域(Carbohydrate-Binding Module，CBM)。