Four Ways to Package Transgenes That Exceed the Size Limit of Adeno-associated Virus
Type
Blog Post
...sequential homology directed repairs (HDR) with CRISPR/Cas9. Donor A contains: 400bp homology arms to the...increasing the size of the AAV donor template for CRISPR-mediated homology directed repairs (HDR).
Split... for integration, “part A” of the transgene, the gRNA target site that mediated the donor template’s integration...integration; and a sequence of stuffer DNA after the gRNA target site.
Donor B contains: 400 bp homology ...single step and serve as donors for two consecutive CRISPR-mediated HDR events which results in the integration...if non-homologous end joining (NHEJ) disrupts the gRNA target site after the first HDR event, then the ...A in any of the reading frames downstream of the gRNA target site so that transcripts undergo nonstop ...