Nature Communications (Apr 2022)
Reprogrammed tracrRNAs enable repurposing of RNAs as crRNAs and sequence-specific RNA biosensors
Abstract
In type II CRISPR systems, the guide RNA (gRNA) comprises a CRISPR RNA (crRNA) and a hybridized trans-acting CRISPR RNA (tracrRNA), both being essential in guided DNA targeting functions. Here the authors investigate the programmability of crRNA-tracrRNA hybridization for Cas9 and apply this to biosensing.