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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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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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Homologous Recombination02:31

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The basic reaction of homologous recombination (HR) involves two chromatids that contain DNA sequences sharing a significant stretch of identity. One of these sequences uses a strand from another as a template to synthesize DNA in an enzyme-catalyzed reaction. The final product is a novel amalgamation of the two substrates. To ensure an accurate recombination of sequences, HR is restricted to the S and G2 phases of the cell cycle. At these stages, the DNA has been replicated already and the...
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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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Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
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CRISPR Epigenome Editing in Human Cells using Plasmid DNA Transfection and mRNA Nucleofection Delivery
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CRISPR technologies for precise epigenome editing.

Muneaki Nakamura1, Yuchen Gao1,2,3, Antonia A Dominguez1,4

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

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Summary
This summary is machine-generated.

CRISPR technology enables precise epigenome engineering by manipulating genomic activity. Future advancements promise powerful tools for understanding and controlling biological functions through epigenomic editing.

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Area of Science:

  • Molecular Biology
  • Genetics
  • Epigenetics

Background:

  • The epigenome regulates genomic activity through complex cellular processes.
  • Understanding and manipulating these processes requires specialized tools.
  • Prokaryotic CRISPR systems offer a foundation for epigenome engineering technologies.

Purpose of the Study:

  • To review current epigenetic manipulation techniques.
  • To discuss the applications of these techniques.
  • To highlight the potential of CRISPR-based epigenomic editing.

Main Methods:

  • Review of existing literature on CRISPR systems and epigenetics.
  • Analysis of current epigenetic manipulation strategies.
  • Compilation of relevant applications and future directions.

Main Results:

  • CRISPR systems have been repurposed for diverse epigenome engineering applications.
  • Various epigenetic modifications can be precisely targeted.
  • Current technologies demonstrate feasibility of epigenomic editing.

Conclusions:

  • CRISPR-based epigenomic editing is a rapidly advancing field.
  • Further optimization will enhance its utility for biological research.
  • These tools hold significant potential for understanding and controlling biological functions.