经典案例|普健哺乳动物细胞表达系统之scfv表达

（1）Protein Name: protein L（一种scfv）

该蛋白不易表达，采用哺乳动物细胞表达系统表达活性最佳，其他表达系统表达活性低。

（2）Expression vector: pATX2

（3）Expression host: HEK293F

总结：蛋白L（scfv）采用普健高表达pATX系列载体配合公司优化高密度哺乳表达系统Xten293，成功表达，表达量高达31.2mg/L，纯度>90%，经检验，其具有较高活性。

MW. Molecular weight marker. Ø. Non-transfected (negative control).

The protein L expressed secretorily in HEK293F cells.

MW. Molecular weight marker. IN. Input.  FT. Flow through. W. Washes. E. Eluted fractions.

A. The purification test result. B. Final QC gel.

L-pATX2 was transfected with 80ml HEK293F cells. The culture medium and cells which were collected on the sixth day post transfection did purification test.

1L scale up purification

MW. Molecular weight marker. IN. Input.  FT. Flow through. W. Washes. E. Eluted fractions.

A. The purification test result. B. Final QC gel.