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Fragments of HIV-1 structural proteins: gp120, gp41, p24, p17 were expressed in E. coli as fusion proteins with N-end fragment of b-galactosidase. To extract the virus fragments from fusion proteins with the use of acid hydrolise, acid-labile bonds Asp-Pro were added at the point of junction. An original method of isolation and purification of inclusion bodies from E. coli cells was developed. The...
Escherichia coli is the most useful bacterial species applied to genetic engineering in recombinant proteins production process.The supply of many polipeptides with potential clinical or industrial use is often limited by their low natural availability. Overexpressed polipeptides may either be located in the cytoplasm and periplasm of E.coli or secreted through the cell membrne into the growth medium...
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