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CRISPR/Cas9 Genome Editing01:28

CRISPR/Cas9 Genome Editing

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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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CRISPR01:59

CRISPR

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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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CRISPR and crRNAs02:53

CRISPR and crRNAs

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Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
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Related Experiment Video

Updated: Dec 24, 2025

Gene Digital Circuits Based on CRISPR-Cas Systems and Anti-CRISPR Proteins
10:46

Gene Digital Circuits Based on CRISPR-Cas Systems and Anti-CRISPR Proteins

Published on: October 18, 2022

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Design and analysis of CRISPR-Cas experiments.

Ruth E Hanna1, John G Doench2

  • 1Broad Institute of Harvard and MIT, Cambridge, MA, USA.

Nature Biotechnology
|April 15, 2020
PubMed
Summary

CRISPR-Cas systems offer flexible genome editing, supported by numerous software tools for designing guide RNAs and analyzing experiments. Continued development and maintenance of these computational resources are crucial for researchers across disciplines.

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Area of Science:

  • Genomics
  • Molecular Biology
  • Bioinformatics

Background:

  • CRISPR-Cas systems provide powerful tools for genome manipulation.
  • A growing number of software and analytical methods support CRISPR-Cas experimental design and data analysis.
  • Recent advancements focus on tools for large-scale CRISPR-based genetic screens.

Purpose of the Study:

  • To review the current landscape of computational tools for CRISPR-Cas experiments.
  • To highlight the importance of maintaining and improving existing software resources.
  • To ensure reliable computational support for researchers utilizing CRISPR-Cas technology.

Main Methods:

  • Literature review of existing CRISPR-Cas software and analytical methods.
  • Analysis of trends in computational tool development for CRISPR-Cas applications.
  • Assessment of challenges in maintaining and improving bioinformatics resources.

Main Results:

  • A wide array of tools exists for guide RNA design and experimental result analysis.
  • Significant focus has been placed on developing tools for large-scale genetic screens.
  • The field faces an ongoing challenge in maintaining and enhancing these computational resources.

Conclusions:

  • The proliferation of CRISPR-Cas systems necessitates robust and stable computational tools.
  • Continuous innovation and maintenance of software are essential for widespread adoption and reliable research.
  • Ensuring the quality and accessibility of bioinformatics resources will facilitate future discoveries in genome editing.