Swine vesicular disease virus viral protein 1 (VP1) protein secretion expression recombinant plasmid and application thereof
A porcine vesicular disease virus and recombinant plasmid technology, applied in the field of protein expression, can solve the problems such as the inability of the recombinant protein to be secreted out of the cell, unfavorable for the purification of the recombinant protein, difficulty in protein purification, etc., so as to facilitate the extraction and purification, reduce the production cost, and improve the purification efficiency. Effect
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[0038] 1. Materials and methods
[0039] 1.1 Strains and plasmids
[0040] Escherichia coli (E.coli) DH5α, DH10Bac (including Bacmid and Helper plasmids), and pFastBac1 plasmids are all products of Invitrogen; pMD18-T plasmid is a product of Dalian Bao Biological Engineering Co., Ltd.; porcine vesicular disease virus nucleic acid, insect cell Sf9 Passage cells were provided by the Animal and Plant Inspection and Quarantine Technology Center of Shenzhen Entry-Exit Inspection and Quarantine Bureau.
[0041] 1.2 Main reagents
[0042] Porcine vesicular disease virus-positive and negative sera were provided by the Institute of Animal Health (IAH); the biotin-labeled anti-pig secondary antibody was produced by Abcom; SF-900 II medium and liposome II were both produced by Invitrogen.
[0043] 1.3 Construction of recombinant transposable vector
[0044] 1.3.1 Adding the vector construction of bee venom signal peptide sequence
[0045] The BamH Ⅰ restriction site sequence is added...
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