Figure 2.
SDS-PAGE of the expression and purification of PsGrx in E. coli. lane 1: IPTG-induced E. coli BL21 (Grx−); lane 2: a total cell lysate of IPTG-induced E. coli BL21 (Grx+); lane 3: purified PsGrx; lane 4: molecular weight protein marker.
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