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Probing Self-regeneration of Essential Protein Factors Required for in Vitro Translation Activity by Serial Transfer

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Specialty Chemistry
Date 2020 Nov 26
PMID 33241808
Citations 2
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Abstract

The bottom-up construction of bio-inspired systems capable of self-maintenance and reproduction is a central goal in systems chemistry and synthetic biology. A particular challenge in such systems is the continuous regeneration of key proteins required for macromolecular synthesis. Here, we probe self-maintenance of a reconstituted in vitro translation system challenged by serial transfer of selected key proteins. We find that the system can simultaneously regenerate multiple essential polypeptides, which then contribute to the maintenance of protein expression after serial transfer. The presented strategy offers a robust methodology for probing and optimizing continuous self-regeneration of proteins in cell-free environments.

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