Rehosting of bacterial chaperones for high-quality protein production

Autor: Ugutz Unzueta, Rob Noad, Verónica Toledo-Rubio, Polly Roy, Mónica Martínez-Alonso, Antonio Villaverde, Neus Ferrer-Miralles
Jazyk: angličtina
Rok vydání: 2009
Předmět:
Zdroj: Applied and environmental microbiology. 75(24)
ISSN: 1098-5336
0099-2240
Popis: Coproduction of DnaK/DnaJ in Escherichia coli enhances solubility but promotes proteolytic degradation of their substrates, minimizing the yield of unstable polypeptides. Higher eukaryotes have orthologs of DnaK/DnaJ but lack the linked bacterial proteolytic system. By coexpression of DnaK and DnaJ in insect cells with inherently misfolding-prone recombinant proteins, we demonstrate simultaneous improvement of soluble protein yield and quality and proteolytic stability. Thus, undesired side effects of bacterial folding modulators can be avoided by appropriate rehosting in heterologous cell expression systems.
Databáze: OpenAIRE