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Updated: Dec 11, 2025

Enhanced Genome Editing with Cas9 Ribonucleoprotein in Diverse Cells and Organisms
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Directed Evolution of CRISPR/Cas Systems for Precise Gene Editing.

Rongming Liu1, Liya Liang1, Emily F Freed1

  • 1Renewable and Sustainable Energy Institute (RASEI), University of Colorado Boulder, Boulder, CO, USA.

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|August 24, 2020
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Summary

Protein domains offer a novel classification for engineering CRISPR-Cas systems. This approach helps modify CRISPR functions by targeting conserved protein domains for advanced genome engineering applications.

Keywords:
CRISPRCas protein engineeringCas12aCas9gene editing

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Area of Science:

  • Biotechnology
  • Molecular Biology
  • Genomics

Background:

  • CRISPR technology is a revolutionary genome engineering tool.
  • New CRISPR/Cas systems and engineered Cas proteins expand its applications.
  • Cas proteins possess complex structures with multiple functional domains.

Purpose of the Study:

  • Propose a new classification for CRISPR-Cas protein engineering strategies based on protein domains.
  • Discuss methods for engineering key protein domains to alter CRISPR/Cas system functions.

Main Methods:

  • Review of existing literature on CRISPR/Cas systems and protein engineering.
  • Analysis of Cas protein domain structures and functions.
  • Categorization of engineering strategies by protein domain.

Main Results:

  • Protein domains can serve as a basis for classifying CRISPR engineering approaches.
  • Engineering specific domains allows for modification of CRISPR/Cas system functions.
  • This domain-centric view provides a structured framework for future engineering efforts.

Conclusions:

  • Classifying CRISPR engineering by protein domains offers a new perspective.
  • Targeting conserved protein domains is a viable strategy for functional modification.
  • This approach facilitates the development of novel CRISPR tools for biotechnology.