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. 2021 Jun 23;11:13172. doi: 10.1038/s41598-021-92604-2

Figure 2.

Figure 2

Expression and purification of four OBPs of V. destructor. While VdesOBP1, VdesOBP2 and VdesOBP5 were easily produced in bacteria, VdesOBP3 and VdesOBP4, which are structurally related, proved difficult to express. In fact, VdesOBP4 was obtained only in very low yield, while we could not observe expression of VdesOBP3 in any of the different constructs adopted. M: Molecular weight markers; bef: crude sample before culture induction; aft: crude sample after induction with IPTG; SN: supernatant after lysis and centrifugation; P: pellet after lysis and centrifugation; OBP: sample of purified protein.