AIM To construct the eucaryotic expression vector of the cDNA sequence encoding bioactive N terminal fragment of human bactericidal / permeability increasing protein (BPI) and to express it in COS 7 cells.

• 目的 构建人杀菌 /通透性增加蛋白 (BPI) N端活性片段 c DNA序列的真核表达载体并了解其在 COS- 7细胞中的表达 .