The optimal concentration of IPTG, which can induce the recombina nt pGEX -2T/ht L-PGDS to express fusion GST/htL-PGDS protein , is 1mmol/L, and the o ptimal induction period is 4h.

• 用IPTG诱导重组质粒pGEX-2T/htL-PGDS表达的最佳浓度为1 mmol/L；最佳时间为4 h.