Related Experiment Video
Updated: Aug 23, 2025
09:51
Enhanced Genome Editing with Cas9 Ribonucleoprotein in Diverse Cells and Organisms
Published on: May 25, 2018
34.2K
Frankenstein Cas9: engineering improved gene editing systems
Pascal D Vos1,2,3,4,5, Aleksandra Filipovska3,4,5,6, Oliver Rackham1,2,3,4,6
1Curtin Medical School, Curtin University, Bentley, Western Australia 6102, Australia.
Biochemical Society Transactions
|October 28, 2022
Summary
CRISPR-Cas9 gene editing is powerful but has limitations. Protein engineering has created improved Cas9 variants, offering enhanced tools for biotechnology and expanding the scope of CRISPR applications.
Area of Science:
- Biotechnology
- Molecular Biology
- Genetic Engineering
Background:
- The CRISPR-Cas9 system has revolutionized biological research due to its targeted gene editing capabilities.
- Guide RNA (gRNA) enables specific targeting of Cas9 nuclease activity.
- Current Cas9 systems face challenges including off-target effects and variable on-target efficiency.
Purpose of the Study:
- To address limitations of the standard CRISPR-Cas9 system.
- To explore protein engineering strategies for improving Cas9 functionality.
- To develop enhanced Cas9 variants for biotechnological applications.
Main Methods:
- Protein engineering of the Cas9 nuclease.
- Development of novel guide RNA designs.
- Assessment of Cas9 variant activity, specificity, and fidelity.
Main Results:
- Several Cas9 variants with improved nuclease activity have been engineered.
- Variants demonstrate reduced off-target effects and enhanced on-target efficiency.
- New Cas9 variants offer alternative functionalities for gene editing.
Conclusions:
- Engineered Cas9 variants represent significant advancements over the original system.
- These improved tools expand the potential and precision of CRISPR-based technologies.
- Future biotechnological and therapeutic applications will benefit from these enhanced gene editing tools.
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