Take advantage of the power of the AAVS1 Safe Harbor Site
When you want to take advantage of the robust and reliable expression that’s possible from the AAVS1 Safe Harbor Site, SBI offers a series of HR Targeting Vectors (also called HR Donors) that already have homology arms specific for the AAVS1 site. Simply clone your gene or miRNA of interest into this first generation AAVS1 HR Targeting Vector—pAAVS1D-PGK-MCS-EF1α-copGFPpuro—and co-transfect with Cas9 and gRNA delivery constructs, such as our All-in-one Cas9 SmartNuclease & AAVS1 gRNA Plasmid.
Delivering consistent, robust transgene expression, the AAVS1 safe harbor site is a preferred target for gene knock-ins. Insertion at the site has been shown to be safe with no phenotypic effects reported, and the surrounding DNA appears to be kept in an open confirmation, enabling stable expression of a variety of transgenes.
SBI’s AAVS1 Safe Harbor Targeting products deliver:
- Easy, precise knock-in of any gene
- Consistent, robust transgene expression from the AAVS1 Safe Harbor Site
- Simplified construction of isogenic cell lines
- Minimal off-target integration
- Streamlined CRISPR/Cas9 library screening
Why use an HR targeting vector?
Even though gene knock-outs can result from DSBs caused by Cas9 alone, SBI recommends the use of HR targeting vectors (also called HR donor vectors) for more efficient and precise mutation. HR donors can supply elements for positive or negative selection ensuring easier identification of successful mutation events. In addition, HR donors can include up to 6-8 kb of open reading frame for gene knock-ins or tagging, and, when small mutations are included in either 5’ or 3’ homology arms, can make specific, targeted gene edits.
Why use this vector?
The pAAVS1D-PGK-MCS-EF1α-copGFPpuro AAVS1 HR Targeting Vector features dual GFP and Puromycin-resistance markers driven by a constitutive EF1α promoter, enabling easy monitoring of successful recombination by GFP fluorescence, as well as rapid selection for integration using the puromycin antibiotic marker.