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Related Concept Videos

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The CRISPR-Cas system serves as a bacterial defense mechanism against invading genetic elements such as viruses and plasmids, forming the foundation for its adaptation as a powerful genome-editing tool. Originally discovered in prokaryotes, this system has been repurposed to revolutionize genetic engineering across a wide range of organisms, including plants, animals, and humans. The core component, Cas9, is an endonuclease derived from Streptococcus pyogenes, capable of introducing...
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Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
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Durable CRISPR-Based Epigenetic Silencing.

Muneaki Nakamura1, Alexis E Ivec1,2, Yuchen Gao1,3

  • 1Department of Bioengineering, Stanford, CA 94305USA.

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|October 18, 2023
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Summary
This summary is machine-generated.

Researchers developed a CRISPR epigenome editing reporter system to measure stable gene repression. This tool aids in creating new epigenome editing technologies for biological research and engineering applications.

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Area of Science:

  • Molecular Biology
  • Epigenetics
  • Gene Editing Technologies

Background:

  • CRISPR-based epigenome editing is crucial for understanding and manipulating biological functions.
  • Developing tools to precisely control gene expression is essential for biological research.

Purpose of the Study:

  • To design and validate a reporter system for quantifying the efficacy of CRISPR epigenome editors in achieving stable gene repression.
  • To characterize the dynamics of gene silencing and reactivation mediated by CRISPR epigenome editing tools.

Main Methods:

  • Development of a reporter system to assess CRISPR epigenome editor performance.
  • Creation of single-protein CRISPR constructs incorporating epigenetic editing domains (termed KAL).
  • Characterization of gene silencing, reactivation dynamics, and associated epigenetic modifications.

Main Results:

  • Successful design of a reporter system for quantifying stable gene repression.
  • Demonstration of single-protein CRISPR constructs (KAL) capable of durable gene silencing.
  • Characterization of the dynamics of gene silencing and reactivation, alongside induced epigenetic changes.

Conclusions:

  • The developed reporter system enables the evaluation of CRISPR epigenome editing tools for stable gene repression.
  • The KAL constructs provide a foundation for novel epigenome editing tools.
  • This work facilitates advancements in epigenome editing for diverse biological research and engineering applications.