Method for preparing soluble HIV-1 integrase recombinant protein
A HIV-1, recombinant protein technology, applied in the direction of recombinant DNA technology, transferase, introduction of foreign genetic material using vectors, etc., can solve the problems of low yield, easy formation of inclusion bodies, poor solubility of target protein, etc., to increase the solubility , Strengthen the crushing effect, increase the effect of solubility and stability
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[0015] The present invention will be further described below in conjunction with specific embodiment:
[0016] Prepare soluble HIV-1 integrase recombinant protein according to the following steps:
[0017] (1) Transform the integrase recombinant protein expression vector pWIN constructed on the basis of the pET-28a (+) vector into Escherichia coli BL21 (DE3) competent cells, pick positive clones and inoculate them in 5 ml containing 50 mg / L cannabinoid Mycin LB liquid medium was shaken at 37 °C for 14 h to obtain cultures.
[0018] (2) The culture in (1) was inoculated into 0.6 L expression medium at a volume ratio of 1%, and cultured on a shaking table at 37 °C until the OD600 value of the bacterial solution reached 0.8, and then added isopropyl-β-D-thio The final concentration of galactoside to isopropyl-β-D-thiogalactoside was 0.4 mM, and the culture was obtained by shaken culture at 37 °C for 4.5 h; the expression medium contained 25 g / L tryptone (purchased from Thermo F...
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