Journal
FEBS LETTERS
Volume 593, Issue 6, Pages 611-621Publisher
WILEY
DOI: 10.1002/1873-3468.13352
Keywords
assembly; folding; molecular chaperones; protein expression; Rubisco; Rubisco activase
Funding
- Deutsche Forschungsgemeinschaft (DFG) [SFB1035]
- Minerva foundation of the Max Planck Society
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Improving the performance of the key photosynthetic enzyme Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) by protein engineering is a critical strategy for increasing crop yields. The extensive chaperone requirement of plant Rubisco for folding and assembly has long been an impediment to this goal. Production of plant Rubisco in Escherichia coli requires the coexpression of the chloroplast chaperonin and four assembly factors. Here, we demonstrate that simultaneous expression of Rubisco and chaperones from a T7 promotor produces high levels of functional enzyme. Expressing the small subunit of Rubisco with a C-terminal hexahistidine-tag further improved assembly, resulting in a similar to 12-fold higher yield than the previously published procedure. The expression system described here provides a platform for the efficient production and engineering of plant Rubisco.
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