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Side effects of chaperone gene co-expression in recombinant protein production.
Martínez-Alonso, Mónica García-Fruitós, Elena Ferrer-Miralles, Neus Rinas, Ursula Villaverde, Antonio
Martínez-Alonso, Mónica
García-Fruitós, Elena
Ferrer-Miralles, Neus
Rinas, Ursula
Villaverde, Antonio
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Abstract
Insufficient availability of molecular chaperones is observed as a major bottleneck for proper protein folding in recombinant protein production. Therefore, co-production of selected sets of cell chaperones along with foreign polypeptides is a common approach to increase the yield of properly folded, recombinant proteins in bacterial cell factories. However, unbalanced amounts of folding modulators handling folding-reluctant protein species might instead trigger undesired proteolytic activities, detrimental regarding recombinant protein stability, quality and yield. This minireview summarizes the most recent observations of chaperone-linked negative side effects, mostly focusing on DnaK and GroEL sets, when using these proteins as folding assistant agents. These events are discussed in the context of the complexity of the cell quality network and the consequent intricacy of the physiological responses triggered by protein misfolding.
Citation
Side effects of chaperone gene co-expression in recombinant protein production. 2010, 9:64 Microb. Cell Fact.
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PubMed ID
PubMed Central ID
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Article
Language
en
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Series/Report no.
ISSN
1475-2859