Tandem Cell-Free Protein Synthesis as a Tool for Rapid Screening of Optimal Molecular Chaperones

Biotechnology Journal
Hyeon-Jung YangDong-Myung Kim

Abstract

A simple and flexible method is developed for rapid screening of molecular chaperones that enhance the functional expression of recombinant proteins. A panel of molecular chaperones are transiently expressed in a reaction mixture of cell-free protein synthesis and then a target protein is subsequently expressed in the presence of these presynthesized molecular chaperones. The biological activity of the cell-free synthesized target protein is compared to identify the effective molecular chaperones. This strategy successfully identifies individual and combinations of bacterial molecular chaperones that markedly improved the functional expression of horseradish peroxidase. The authors believe that the presented strategy provides a versatile platform for the optimal production of functional proteins, and can also be extended to studies of other interacting proteins.

References

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