Hello! I want to use CRISPR to replace a large strand of DNA. My strand is a little bit over 1kb, is this a problem? Moreover, what length should the homology arms be for a region this size?
Please follow : https://academic.oup.com/nar/article/48/2/974/5651333Article Delivering CRISPR: a review of the challenges and approaches
Article Comparative analysis of single-stranded DNA donors to genera...
Large insertions usually result in lower HDR rates. To my knowledge, the upper limit is around 2-2.5kb.
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