This peptide is mainly composed of Trp and other acidic amino acid, which obviously match to the surface activity site of DEP reported previously.

• 组成氨基酸性质分析表明这些肽段基本都含有色氨酸以及酸性氨基酸，这与前人报道的DEP的表面活性位点存在明显的互补性，也为相互作用的存在提供了分子结构依据。