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Rehosting of bacterial chaperones for high-quality protein production.

Abstract:
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.

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Publisher copy:
10.1128/aem.01532-09

Authors


Journal:
Applied and environmental microbiology More from this journal
Volume:
75
Issue:
24
Pages:
7850-7854
Publication date:
2009-12-01
DOI:
EISSN:
1098-5336
ISSN:
0099-2240


Language:
English
Keywords:
Pubs id:
pubs:267455
UUID:
uuid:0d6d558b-b7f2-4d3e-83c8-9659902f3ce0
Local pid:
pubs:267455
Source identifiers:
267455
Deposit date:
2012-12-19
ARK identifier:

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