Beyond Cas9

While CRISPR/Cas9 may be the most famous of the CRISPR gene editing approaches, other enzymes may have their niches, the Wall Street Journal says.

North Carolina State University's Rodolphe Barrangou, for instance, is using Cas3 in his work on antibiotic resistance. "Cas3 is a meaner system and more cumbersome than Cas9," he tells the Journal. "But if you want to cut a tree and get rid of it, you bring a chain saw, not a scalpel."

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