Recombinant E. coli strain producing Y. pseudotuberculosis Q66CJ2 (YpA) L-asparaginase II was created. Gene ansB homologue encoding Y. pseudotuberculosis IP 32953 L-asparaginase precursor was synthesized. The gene was cloned in pBad24 expression vector and expressed in E. coli BL21 (DE3) strain. Optimal conditions for the producer strain culturing were selected. An effective method for isolation and purifi cation of the enzyme by two-staged column chromatography was developed.
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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 152, No. 8, pp. 179-183, August, 2011
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Sidoruk, K.V., Pokrovsky, V.S., Borisova, A.A. et al. Creation of a Producent, Optimization of Expression, and Purification of Recombinant Yersinia Pseudotuberculosis L-Asparaginase. Bull Exp Biol Med 152, 219–223 (2011). https://doi.org/10.1007/s10517-011-1493-7
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DOI: https://doi.org/10.1007/s10517-011-1493-7