The Cas9 nuclease and requirements for RNA-guided genome-editing. Cas9 is the nuclease guided by the crRNA and tracrRNA (or trans-activating crRNA) to cleave specific DNA sequences (Deltcheva et al.2011). A guide RNA (gRNA) can be designed to include a hairpin that mimics the tracrRNA-crRNA complex (Jinek et al. 2012).he Cas9 nuclease and requirements for RNA-guided genome-editing. Cas9 is the nuclease guided by the crRNA and tracrRNA (or trans-activating crRNA) to cleave specific DNA sequences (Deltcheva et al. 2011).
Solid Surface Bathroom Countertops: These countertops are made from synthetic materials, so they are manufactured in many colors and styles. The pros of solid surface countertops include the choices, strength and a non-porous surface that cleans up quickly.
The MOEN Eva Towel Ring in Brushed Nickel adds the finishing touch to your bathroom decor. This towel ring constructed of a zinc base and featuring a brushed nickel finish is sure to add timeless style to your bathroom. 1  Wall-mounted design keeps hand towels at hand. 2  Brushed nickel finish. 3  Zinc construction provides durability.  Holds up to 22 1  lb. Coordinates with MOEN Eva faucets (sold separately)