Fig. 2

SDS-PAGE of the recombinant Ppa purified from E. coli BL21 (DE3) (pET-ppa) by Ni2+-NTA. Ppa-His6 the purified recombinant Ppa; M low molecular protein marker
SDS-PAGE of the recombinant Ppa purified from E. coli BL21 (DE3) (pET-ppa) by Ni2+-NTA. Ppa-His6 the purified recombinant Ppa; M low molecular protein marker