Fig. 1

SDS-PAGE of the purified recombinant LDP with different concentrations of imidazole, lane “A” is the protein ladder, lane “B” is the before column sample as control, lane “C” is the eluted sample passed from the column with wash buffer, Lane umbers 1, 2, 3, 4, 5, 6, 7, and 8 are related to the protein output from the column with concentrations of 300, 300, 250, 250, 200, 200, 100, 50 mM imidazole, respectively.