msCT-acAP5 fusion protein transgenic engineering strain
A technology of transgenic engineering, msct-acap5, applied in the field of fusion protein transgenic engineering strains, can solve the problems of patient inconvenience, antagonistic reaction, etc., and achieve the effect of safe use and wide application prospects
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specific Embodiment approach 1
[0017] Specific embodiment 1: In this embodiment, the msCT-AcAP5 fusion protein transgenic engineering strain is named Escherichia coli BL21(DE3)-msCT / AcAP5, and Escherichia coli BL21(DE3)-msCT / AcAP5 was prepared according to the following steps:
[0018] 1. Digest the plasmid vector pUC-msCT / AcAP5 containing the msCT-AcAP5 fusion protein gene with BamH I and EcoR I to obtain the DNA fragment of the msCT-AcAP5 fusion protein;
[0019] 2. Digest plasmid pGEX-6P-1 with BamHI and EcoRI;
[0020] 3. The DNA fragment of the msCT-AcAP5 fusion protein was enzymatically ligated with the vector pGEX-6P-1 after double enzyme digestion, and then placed at 16°C for overnight connection to obtain the vector pGEX-msCT / AcAP5;
[0021] 4. Transform Escherichia coli BL21(DE3) with vector pGEX-msCT / AcAP5, and select positive recombinants to obtain msCT-AcAP5 fusion protein transgenic engineering bacteria Escherichia coli BL21(DE3)-msCT / AcAP5.
[0022] Step 4 of this embodiment transforms Esche...
specific Embodiment approach 2
[0023] Specific embodiment two: the difference between this embodiment and specific embodiment one is that: in step one, the enzyme digestion reaction system of plasmid vector pUC-msCT / AcAP5 is
[0024]
[0025]
[0026] Other steps and parameters are the same as those in the first embodiment.
[0027] In the first step of this embodiment, the enzyme digestion reaction was carried out at 37°C for 10 hours, followed by 1.5% agarose gel electrophoresis, and the target fragment was purified and recovered with DNA GEL EXTRACTION KIT.
specific Embodiment approach 3
[0028] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the enzyme digestion reaction system of plasmid pGEX-6P-1 in step two is
[0029]
[0030] Other steps and parameters are the same as those in Embodiment 1 or 2.
[0031] In the second step of this embodiment, the enzyme digestion reaction was carried out at 37°C for 10 hours, followed by 0.6% agarose gel electrophoresis, and the target fragment was purified and recovered with DNA GEL EXTRACTION KIT.
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