Figure 2.
SDS-PAGE analysis (4–12%) of Cbotu_EstA wild-type and variants expressed in E. coli BL21-Gold(DE3) with 0.05 mM IPTG and purified by IMAC. Lane 1: Cbotu_EstA; lane 2: del71Cbotu_EstA; lane 3: del71Cbotu_EstA_S127A; lane 4: del71Cbotu_EstA_W129A; lane 5: del71Cbotu_EstA_F154Y; lane 6: del71Cbotu_EstA_S199A; lane 7: del71Cbotu_EstA_W274H; lane M: pre-stained protein molecular ladder Protein Marker IV (Peqlab, Germany). Image cropped and full-length gel found in Supplementary Information.