Recombinant expression of marine shrimp lysozyme in Escherichia coli Enrique
de-la-Re-Vega Karina
D. García-Orozco Sergio A. Calderón-Arredondo María
Gabriela Romo-Figueroa María A. Islas-Osuna Gloria M. Yepiz-Plascencia Rogerio R. Sotelo-Mundo* *Corresponding author Financial support: Grant IFS AA/3230 from International Foundation for Science ( Keywords: crustacea, lysozyme, penaeideae, Penaeus vannamei, recombinant expression, refolding, shrimp. Abbreviations:
Shrimp Lysozyme (Lyz) is a key component of the antibacterial response as part of the innate defense in Crustacea; however, it has not been possible to purify this protein because of the very low amount present in the shrimp blood cells (hemocytes). In an effort to produce enough protein to study its function and biochemical properties we have overexpressed Lysozyme from marine shrimp (Penaeus vannamei) in E. coli. A bacterial protein expression system based on the T7 polymerase promoter was used. Although Lyz was produced as insoluble protein in inclusion bodies, its refolding led to an active protein with a yield of ~10%. Details of the protein recombinant expression techniques applied to this shrimp protein are presented. |
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