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Using Synthetic Biology to Engineer Living Cells That Interface with Programmable Materials
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Programmable Artificial Cells Using Histamine-Responsive Synthetic Riboswitch.

Mohammed Dwidar1, Yusuke Seike2, Shungo Kobori1

  • 1Nucleic Acid Chemistry and Engineering Unit, Okinawa Institute of Science and Technology Graduate University , Onna , Okinawa 904-0495 , Japan.

Journal of the American Chemical Society
|June 27, 2019
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Summary
This summary is machine-generated.

Researchers developed synthetic RNA switches (riboswitches) to enable artificial cells to sense and respond to specific molecules like histamine. This innovation allows for controlled functions, expanding synthetic biology applications.

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Area of Science:

  • Synthetic biology
  • Biochemistry
  • Molecular engineering

Background:

  • Artificial cells offer a platform for studying cellular processes and synthetic biology.
  • Interfacing artificial cells with dynamic chemical environments is a significant challenge.

Purpose of the Study:

  • To expand the molecular sensing capabilities of artificial cells.
  • To develop RNA-based gene switches (riboswitches) for controlling artificial cell functions.

Main Methods:

  • Isolated an RNA aptamer with high affinity and specificity for histamine.
  • Designed and constructed histamine-responsive riboswitches.
  • Incorporated riboswitches into artificial cells to control encapsulated molecules and implement a kill-switch.

Main Results:

  • Successfully designed robust riboswitches activated by histamine.
  • Demonstrated controlled release of small molecules from artificial cells using riboswitches.
  • Implemented a self-destructive kill-switch in artificial cells controlled by riboswitches.

Conclusions:

  • Synthetic riboswitches serve as versatile interfaces for linking artificial cell behavior to external chemical signals.
  • This approach enhances the programmability and applicability of artificial cells in synthetic biology.