Recombinant S1 protein of novel mutant strain of porcine epidemic diarrhea virus and subunit vaccine of recombinant S1 protein
A technology of porcine epidemic diarrhea and mutated strains, applied in antiviral agents, recombinant DNA technology, cells modified by introducing foreign genetic material, etc., can solve the problem of not achieving good immune effect
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[0046] 1. Materials and methods
[0047] 1.1 Virus strains, plasmids and cells
[0048] E.coil DH5α, Vero cells, PEDV attenuated strain DR13 are preserved by our laboratory. Pseudomonas was purchased from China Veterinary Drug Control Institute. pFastBac in Insect Baculovirus Expression System TM Dual plasmid, pVAX-S1(m) plasmid, Sf9 insect cells and DH10Bac strain were purchased from Invitrogen. The above test materials are conventional materials, which can be purchased from the market by those skilled in the art.
[0049] 1.2 Reagents and experimental animals
[0050] Rabbit anti-S1 protein polyclonal antibody and mouse anti-Pseudomonas exotoxin A protein polyclonal antibody were prepared and preserved in our laboratory (can be prepared by conventional experimental methods). DNA gel recovery kit and Plasmid Miniprep Kit were purchased from BIOMEGA Company. HRP-labeled goat anti-mouse IgG, goat anti-rabbit IgG and FITC-labeled goat anti-mouse IgG and goat anti-rabbit Ig...
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