BPI600 recombinant were transduced into CHO,clones with recombinant were screened by G418, RT-PCR was used to examine the expression of BPI in BPI clone.

• BPI600重组子导入中国仓鼠卵巢上皮细胞(CHO),G418筛选出带有重组子的细胞集落,RT-PCR检测BPI在CHO细胞集落中的表达。