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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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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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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.
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Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
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The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
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Genome Engineering of Primary Human B Cells Using CRISPR/Cas9
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CRISPR/Cas9 System: A Bacterial Tailor for Genomic Engineering.

Bilal Ahmad Lone1, Shibendra Kumar Lal Karna1, Faiz Ahmad1

  • 1Faculty of Life science and Biotechnology, South Asian University, Akbar Bhawan Chanakyapuri, New Delhi 110021, India.

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Summary

CRISPR-Cas9 technology, a microbial defense system, offers precise genome engineering. This revolutionary tool provides simple and efficient gene editing for various applications.

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Area of Science:

  • Microbiology
  • Molecular Biology
  • Biotechnology

Background:

  • Microbes possess defense mechanisms against genome invaders like bacteriophages.
  • CRISPR-associated (Cas) 9 protein is an RNA-guided endonuclease derived from microbial defense systems.
  • CRISPR/Cas9 technology has surpassed earlier genome engineering tools like ZFNs and TALENs in efficiency and simplicity.

Purpose of the Study:

  • To review the developments and potential uses of CRISPR-Cas9 technology.
  • To highlight recent advancements in genome engineering utilizing CRISPR-Cas9.
  • To discuss the revolutionary impact of CRISPR-Cas9 in modulating genomes and its translational applications.

Main Methods:

  • Review of scientific literature on CRISPR-Cas9 technology.
  • Analysis of CRISPR-Cas9 system's mechanism and applications.
  • Comparison of CRISPR-Cas9 with previous genome engineering tools.

Main Results:

  • CRISPR-Cas9 is a versatile and highly efficient tool for genome targeting and engineering.
  • Recent advancements have expanded the capabilities of CRISPR-Cas9 technology.
  • The technology enables precise genome modulation in living cells.

Conclusions:

  • CRISPR-Cas9 technology represents a significant advancement in genome engineering.
  • Its simplicity and efficiency offer broad potential for research and therapeutic applications.
  • The technology is poised to drive innovation across diverse scientific fields.