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Intrinsically Disordered Proteins02:18

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Directed evolution of functional intrinsically disordered proteins.

Yuefeng Ma1, Leshan Yang1, Yantong Chen1

  • 1Department of Biomedical Engineering, Washington University in St. Louis, Saint Louis, MO, USA.

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|January 9, 2026
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Summary
This summary is machine-generated.

Researchers engineered synthetic intrinsically disordered proteins (synIDPs) for precise control over cellular processes. This directed evolution method creates novel synIDPs for diverse applications in synthetic biology and biotechnology.

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Area of Science:

  • Synthetic biology
  • Biotechnology
  • Protein engineering

Background:

  • Engineering synthetic intrinsically disordered proteins (synIDPs) allows control over biomolecular condensation and protein solubility.
  • Limited understanding of sequence-dependent interactions in synIDPs hinders their application in cellular processes.

Purpose of the Study:

  • To develop a systematic directed evolution method for engineering synIDPs with tunable phase behaviors in living cells.
  • To create a versatile toolbox of synIDPs for applications in synthetic biology and biotechnology.

Main Methods:

  • Employed a systematic directed evolution approach to evolve synIDPs.
  • Utilized selection and reverse-selection methods to identify synIDPs with specific phase behaviors and solubility-tagging capabilities.
  • Demonstrated applications in engineered protein circuits.

Main Results:

  • Evolved a toolbox of synIDPs exhibiting distinct phase behaviors and thermoresponsive properties in living cells.
  • Successfully developed synIDPs functioning as solubility tags.
  • Showcased synIDP applications in regulating intracellular protein activity and reversing antibiotic resistance.

Conclusions:

  • The developed directed evolution and selection strategies offer a powerful platform for designing synIDPs.
  • Engineered synIDPs have broad potential in synthetic biology and biotechnology for controlling cellular functions and developing novel therapeutics.