Related Experiment Video

Updated: Aug 4, 2025

Using Phage Display to Develop Ubiquitin Variant Modulators for E3 Ligases
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Using Phage Display to Develop Ubiquitin Variant Modulators for E3 Ligases

Published on: August 27, 2021

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Generation and Characterization of Engineered Ubiquitin Variants to Modulate the Ubiquitin Signaling Cascade

Chen T Liang1, Olivia Roscow1, Wei Zhang2,3

  • 1Department of Molecular and Cellular Biology, College of Biological Science, University of Guelph, Guelph, Ontario N1G2W1, Canada.

Cold Spring Harbor Protocols
|March 30, 2023
PubMed

Insights

Researchers developed novel ubiquitin variants (UbVs) using protein engineering to modulate the ubiquitin system, offering potential new therapies for diseases like cancer by targeting ubiquitination pathways.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Drug Discovery

Background:

  • The ubiquitin signaling cascade is vital in cellular functions, and its dysregulation is linked to diseases such as cancer.
  • Targeting ubiquitination and deubiquitination pathways is a key strategy in developing new therapeutics.
  • Protein-based modulators offer specificity and potency for modulating ubiquitin signal transduction.

Approach:

  • Utilizing a structure-based combinatorial protein-engineering strategy to create ubiquitin variants (UbVs).
  • Employing phage display technology for the generation and selection of UbV libraries.
  • Developing and refining methods for UbV binder selection and library improvement.

Key Points:

  • Detailed review of the design and generation of phage-displayed UbV libraries.
  • Comprehensive overview of in vitro and cellular methodologies for characterizing UbV binders.
  • Highlighting recent applications of UbVs in developing potential therapeutic molecules.

Conclusions:

  • Ubiquitin variants (UbVs) represent a promising class of protein-based therapeutics.
  • The presented approaches facilitate the development of specific modulators for the ubiquitin-proteasome system.
  • UbV technology holds significant potential for future drug development targeting ubiquitin-related diseases.

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