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CRISPR/Cas9 Genome Editing01:28

CRISPR/Cas9 Genome Editing

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...
CRISPR01:59

CRISPR

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 Short...
CRISPR01:59

CRISPR

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 Short...
CRISPR and crRNAs02:53

CRISPR and crRNAs

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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Video Experimental Relacionado

Updated: May 15, 2026

CRISPR/Cas12a Multiplex Genome Editing of Saccharomyces cerevisiae and the Creation of Yeast Pixel Art
10:18

CRISPR/Cas12a Multiplex Genome Editing of Saccharomyces cerevisiae and the Creation of Yeast Pixel Art

Published on: May 28, 2019

La ingeniería del genoma múltiple usando sistemas CRISPR/Cas.

Le Cong1, F Ann Ran, David Cox

  • 1Broad Institute of MIT and Harvard, 7 Cambridge Center, Cambridge, MA 02142, USA.

Science (New York, N.Y.)
|January 5, 2013
PubMed
Resumen
Este resumen es generado por máquina.

Este estudio introduce la edición de genes CRISPR-Cas9 para la escisión precisa del ADN en células humanas y de ratón. Esta tecnología permite la edición simultánea de múltiples sitios genómicos, ofreciendo una amplia aplicabilidad para la investigación genética.

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Last Updated: May 15, 2026

CRISPR/Cas12a Multiplex Genome Editing of Saccharomyces cerevisiae and the Creation of Yeast Pixel Art
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Área de la Ciencia:

  • Biología Molecular Biología Molecular
  • Genética La genética.
  • Biotecnología La biotecnología es la biotecnología.

Sus antecedentes:

  • La edición precisa del genoma es crucial para comprender las variantes genéticas.
  • El sistema CRISPR/Cas procariótico ofrece capacidades de escisión del ADN guiadas por ARN.

Objetivo del estudio:

  • Diseñar y demostrar la eficacia de los sistemas CRISPR-Cas9 para la edición dirigida del genoma en células de mamíferos.
  • Explorar la programabilidad y aplicabilidad de las nucleasas guiadas por ARN para la genómica funcional.

Principales métodos:

  • La ingeniería de dos sistemas distintos de tipo II CRISPR/Cas.
  • Utilizando nucleasas Cas9 guiadas por ARN cortos para la escisión del ADN específico del sitio.
  • Conversión de Cas9 en una enzima de nicking para la reparación dirigida por homología.

Principales resultados:

  • Se ha demostrado una escisión precisa en los loci genómicos endógenos en células humanas y de ratón utilizando sistemas de ingeniería CRISPR-Cas9.
  • Mostró una actividad mutagénica mínima con una variante Cas9 nicking para mejorar la reparación.
  • Se habilitó la edición simultánea del genoma en múltiples sitios a través de una sola matriz CRISPR, destacando la programabilidad.

Conclusiones:

  • La tecnología de la nucleasa CRISPR-Cas9 guiada por ARN es altamente programable y ampliamente aplicable para la edición del genoma de mamíferos.
  • Este sistema facilita la aclaración funcional de las variantes y elementos genéticos con precisión y eficiencia.