Title |
Semicontinuous Bioreactor Production of Recombinant Butyrylcholinesterase in Transgenic Rice Cell Suspension Cultures
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Published in |
Frontiers in Plant Science, March 2016
|
DOI | 10.3389/fpls.2016.00412 |
Pubmed ID | |
Authors |
Jasmine M. Corbin, Bryce I. Hashimoto, Kalimuthu Karuppanan, Zachary R. Kyser, Liying Wu, Brian A. Roberts, Amy R. Noe, Raymond L. Rodriguez, Karen A. McDonald, Somen Nandi |
Abstract |
An active and tetrameric form of recombinant butyrylcholinesterase (BChE), a large and complex human enzyme, was produced via semicontinuous operation in a transgenic rice cell suspension culture. After transformation of rice callus and screening of transformants, the cultures were scaled up from culture flask to a lab scale bioreactor. The bioreactor was operated through two phases each of growth and expression. The cells were able to produce BChE during both expression phases, with a maximum yield of 1.6 mg BChE/L of culture during the second expression phase. Cells successfully regrew during a 5-day growth phase. A combination of activity assays and Western blot analysis indicated production of an active and fully assembled tetramer of BChE. |
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