In nature, the best-known CRISPR system, CRISPR-Cas9, cuts any RNA or DNA it recognizes as foreign, and thereby protects bacteria from viral attacks. Another CRISPR system, one that is relatively ...

Bacteria and their viruses, known as phages, are locked in an age-old arms race. To defend against phage attacks, bacteria have evolved sophisticated mechanisms to recognize and counteract invading ...

CRISPR-Cas systems are adaptive immune systems found in prokaryotes that defend against invading nucleic acids through CRISPR RNA-guided cleavage. Type V CRISPR-Cas (Cas12) systems, in particular, ...

A team of researchers led by Alan Davidson at the University of Toronto have discovered a small protein that can disassemble a stable bacterial CRISPR-Cas7 complex without using adenosine ...