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Fig. 1 | BMC Biotechnology

Fig. 1

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. 1

Schematic diagram of IFN-CSP gene in the expression vector IFN-CSP/pET-21b and expression of IFN-CSP protein in E. coli BL21/pET-21b-IFN-CSP. a: A Schematic diagram of IFN-CSP/pET-21b (T7 pro, T7 promoter; T7 ter, T7 terminator). b: SDS-PAGE analysis of protein expression. Lane M: Protein molecular weight marker, Lane 1–2: Total proteins of E. coli BL21/pET-21b-IFN-CSP before and after induction, Lane 3–4: Supernatant and precipitation after ultrasonication and centrifugation

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