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Combinatorial gene control is the synergistic action of several transcriptional factors to regulate the expression of a single gene. The absence of one or more of these factors may lead to a significant difference in the level of gene expression or repression.
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RiboTALE: A modular, inducible system for accurate gene expression control.

Navneet Rai1, Aura Ferreiro2, Alexander Neckelmann2

  • 1UC Davis Genome Center, University of California-Davis, Davis, CA, USA.

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|May 30, 2015
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We developed RiboTALEs, novel inducible repressors that combine TALE specificity with riboswitch sensing for precise synthetic gene circuit control. This system offers a wide dynamic range for biotechnological applications.

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Area of Science:

  • Synthetic Biology
  • Molecular Biology
  • Biotechnology

Background:

  • Synthetic gene circuit design is limited by the number of independent control elements.
  • Developing novel regulatory systems is crucial for advancing synthetic biology.

Purpose of the Study:

  • To introduce RiboTALEs, a new class of inducible repressors.
  • To demonstrate the ability of RiboTALEs to control gene expression with high specificity and dynamic range.

Main Methods:

  • Constructing RiboTALEs by combining TALE proteins and riboswitches.
  • Testing the performance of RiboTALEs in controlling downstream gene expression.

Main Results:

  • RiboTALEs exhibit rapid and reproducible control over gene expression.
  • The system achieved a significant dynamic range of 243.7 ± 17.6-fold.

Conclusions:

  • RiboTALEs represent a powerful new tool for synthetic gene circuit design.
  • The demonstrated dynamic range is suitable for various biotechnological applications.