By expression vector pHHSM002, tpsl gene also expressed efficiently in E. coli BL21(DE3)PlysS ,the target protein amount to 17.8% in cell.

• 以pHHSM002为表达载体，tps1基因在大肠杆菌BL21中也得到了高效表达，表达的目的蛋白占菌体总蛋白的17.；8%25。