One Shot™ BL21(DE3)pLysE Chemically Competent E. coli

One Shot BL21(DE3)pLysE Chemically Competent E. coli cells are ideal for use with bacteriophage T7 promoter-based expression systems such as pRSET and pET. The pLysE plasmid carried by the BL21(DE3)pLysE strain produces higher amounts of T7 lysozyme than