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Fig. 6 | BMC Biotechnology

Fig. 6

From: High-level expression of a novel liver-targeting fusion interferon with preferred Escherichia coli codon preference and its anti-hepatitis B virus activity in vivo

Fig. 6

Effect of different IPTG concentration on the expression level of IFN-CSP in E. coli BL21/pET21b-IFN-CSP. a: SDS-PAGE analyses of IFN-CSP expression using different IPTG concentration. Lane M: Protein molecular weight marker; Lane 1: E. coli BL21/pET21b-IFN-CSP before induction; Lanes 2–9: IPTG concentrations are 0.1, 0.2, 0.4, 0.6, 0.8, 1.0, 1.2 and 1.5 mmol/L, respectively. b: Percentage and concentration of IFN-CSP were calculated by the target bands in SDS-PAGE (A)

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BMC Biotechnology

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