The recombinant plasmid of pGEX-SAGl was transformed to a bacterium BL21-Codon Plus(DE3)-RP and the recombinant protein was expressed under the inducement of IPTG.

• 将重组质粒pGEX一SAGI转化大肠杆菌BL21一CodonPlus(DE3)一RP菌株中，在IPTG诱导下表达;