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From Cells to Cell-Free Protein Synthesis within 24 Hours Using Cell-Free Autoinduction Workflow
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Bringing Light into Cell-Free Expression.

Peng Zhang1, Junzhu Yang1, Eunhee Cho1

  • 1Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.

ACS Synthetic Biology
|July 1, 2020
PubMed
Summary
This summary is machine-generated.

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This study introduces a blue light-controlled system for cell-free protein synthesis, enabling dynamic control over biological processes. The developed optogenetic tool enhances synthetic biology applications through precise light-based regulation.

Area of Science:

  • Synthetic Biology
  • Optogenetics
  • Biochemistry

Background:

  • Cell-free systems are crucial for synthetic biology but lack dynamic transcriptional and translational control.
  • Optogenetic tools offer precise, non-toxic control over biological processes.
  • Developing controllable cell-free systems is essential for advancing synthetic biology applications.

Purpose of the Study:

  • To engineer a blue light-regulated switch for controlling protein synthesis in an Escherichia coli-based cell-free system.
  • To demonstrate the dynamic control capabilities of the YF1/FixJ optogenetic system in a cell-free environment.
  • To explore the applications of this cell-free optical sensing system in imaging, antibody synthesis, and artificial cell assembly.

Main Methods:

  • Incorporation of the blue light-regulated YF1/FixJ two-component system into an E. coli-based cell-free system.
Keywords:
artificial cellcell-free systemoptogeneticspDarkpLight

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  • Utilizing blue light to modulate transcriptional and translational processes for protein synthesis.
  • Applying the developed system for imaging, antibody production, and artificial cell construction.

    • Main Results:

    • Achieved a 5-fold dynamic protein expression range via blue light repression.
    • Demonstrated a 3-fold dynamic protein expression range via blue light activation.
    • Successfully utilized the system for light-controlled imaging, antibody synthesis, and artificial cell assembly.

    Conclusions:

    • The developed blue light-sensing cell-free system provides a novel method for dynamic control of protein synthesis.
    • This research expands the utility of cell-free synthetic biology and optogenetics.
    • The system holds potential for applications in education, biopharmaceutical research, and artificial cell development.