Fig. 1

SDS polyacrylamide gel of soluble NDM-1 protein fraction isolated from E. coli BL21 cells having the NDM-1 marker. The cells were induced with 0.5 mM IPTG for 3 h at 37 °C. Lane P is the NDM-1 protein of 28.5 kDa in size and lane M is the prestained protein ladder