Cas9 is directed to its target within the DNA sequence through the use of the guide RNA. A specific sequence of DNA that is between two and five nucleotides in length must align with the 3’ end of the ...

When scientists discovered how bacteria protect themselves against viral invaders, called phages, in the early 2000s, little did they know they'd stumbled upon a revolutionary tool researchers could ...

Scientists introduced CRISPR to the world as a gene-editing tool in summer 2012, when landmark papers from two independent groups demonstrated how the system could be wielded to make cuts in DNA. Now, ...

Scientists used CRISPR/Cas9 to increase gene expression in rice by changing its upstream regulatory DNA. While other studies have used the technology to knock out or decrease the expression of genes, ...

For a decade, leading academic institutes and their associated companies fought a bruising, headline-grabbing fight over who held patent rights to CRISPR-Cas9, the revolutionary genome editing tool.