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Gene Digital Circuits Based on CRISPR-Cas Systems and Anti-CRISPR Proteins
Published on: October 18, 2022
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CRISPR/dCas system as the modulator of gene expression.
Tawsif Ahmed Kazi1, Swadesh Ranjan Biswas1
1Department of Botany, Visva-Bharati, Santiniketan, West Bengal, India.
Progress in Molecular Biology and Translational Science
|March 9, 2021
Summary
CRISPR/Cas9 gene editing technology enables precise DNA targeting. Modified CRISPR/dCas systems can regulate gene expression without altering DNA, offering new avenues for biological research and disease treatment.
Area of Science:
- Molecular Biology
- Genetics
- Biotechnology
Background:
- CRISPR/Cas systems offer versatile genome engineering capabilities.
- Guide RNA (gRNA) directs CRISPR-associated proteins to specific DNA sites.
- Dead Cas9 (dCas9) enables gene regulation without DNA sequence alteration.
Purpose of the Study:
- To explore the application of CRISPR/dCas systems for gene expression modulation.
- To highlight the potential of CRISPR interference (CRISPRi) and CRISPR activation (CRISPRa) toolboxes.
- To discuss the implications of CRISPR technology in addressing biological challenges and human diseases.
Main Methods:
- Designing gRNA to target specific genomic regions.
- Utilizing catalytically inactive Cas9 (dCas9) fused with transcriptional effectors.
- Implementing CRISPR interference (CRISPRi) for gene repression.
- Implementing CRISPR activation (CRISPRa) for gene activation.
Main Results:
- CRISPR/dCas systems successfully deliver functional cargo to targeted genomic sites.
- Precise regulation of gene expression achieved without altering the underlying DNA sequence.
- CRISPRi and CRISPRa toolboxes have provided insights into complex biological mechanisms.
Conclusions:
- CRISPR/dCas systems represent a powerful platform for programmable gene regulation.
- These tools are instrumental in advancing biological research and understanding gene function.
- Further development of CRISPR technology holds promise for diagnosing and treating human diseases.
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