Another CRISPR Tool Shows Great Potential to Advance Science

The genome editing toolbox now includes CRISPR-Cas3, which enables "chewing up" of DNA with high speed and efficiency.

CRISPR-Cas9 has been widely used in agricultural improvement, biomedical research, and food science. It is described as a molecular scissor because of its ability to create a single double-strand break at a target site along the DNA. After cutting a section of the DNA, the cell's ability to repair DNA is used to discard or add nucleotides. A more precise tool, CRISPR-Cas12 (also known as CRISPR-Cpf1), was also developed and used by researchers.

Another tool known as CRISPR-Cas3 was reported in Molecular Cell. CRISPR-Cas3 is different from the two CRISPR tools because of its ability to erase long sequences of DNA in eukaryotes like plants and animals. This new CRISPR tool does not make a break, but chews up the DNA with high speed and effectivity. Furthermore, it is highly specific and programmable, making it a promising tool to advance science.

Read more information from Genetic Literacy Project, Science Daily, and Molecular Cell.


This article is part of the Crop Biotech Update, a weekly summary of world developments in agri-biotech for developing countries, produced by the Global Knowledge Center on Crop Biotechnology, International Service for the Aquisition of Agri-Biotech Applications SEAsiaCenter (ISAAA)

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