Fig. 3.
Purification and identification of recombinant Ac-cathB-2. a SDS-PAGE analysis of all fractions through Nickel resin for purification. Lanes: Marker, molecular weight marker; 1, concentrated culture supernatant in binding buffer; 2, column flow-through; 3, binding buffer wash; 4 and 5, successive eluate fractions. b Identification of the purified rAc-cathB-2 by Western blot with an antiserum against Ac-cathB-2 expressed in E. coli and an anti-His antibody