IDT ‘s Universal 67mer tracrRNA contains proprietary chemical modifications conferring increased nuclease resistance. Hybridizes to crRNA to activate the Cas9 enzyme. IDT’s Custom Guide RNAs (gRNAs) contain the target-specific sequence for guiding Cas9 protein to a genomic location. IDT offers 3 gRNA formats: crRNA:tracrRNA duplex, crRNA XT:tracrRNA duplex, and single guide RNA (sgRNA). These products can be ordered directly from the IDT-Syntezza Portal. Visit IDT to learn more or contact Techsupport@syntezza.com.