Authors: Liang Xiang Feng Qi DaZhang Dai Chun Li YuanDa Jiang
Publish Date: 2009/11/18
Volume: 162, Issue: 3, Pages: 654-661
Abstract
Effects of simulated microgravity SMG on bacteria have been studied in various aspects However few reports are available about production of recombinant protein expressed by bacteria in SMG In this study growth of E coli BL21 DE3 cells transformed with pET28a +pgus in doubleaxis clinostat that could model low shear SMG environment and the recombinant βdglucuronidase PGUS expression have been investigated Results showed that the cell dry weights in SMG were 1647 3806 and 2879 more than normal gravity NG control and the efficiency of the recombinant PGUS expression in SMG were 1833 1936 and 3342 higher than that in NG at 19 °C 28 °C and 37 °C respectively P 005
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