Hi there,
I am reading all the previous and current papers about perturb-seq and planning to carry out some sort of similar experiments very soon.
I am wondering, in the 2016 Cell paper, the lentivirus backbone encoding the single guide RNA, why the author emphasized the whole region of U6-sgRNA-EF1alpha-puro-T2A-BFP-GBC-polyA tail is anti-parallel cassette? What are the specific purposes of doing so?
Anyone can help to explain or share their experience on the Perturb-seq construction details would be of great help!
Thanks all in advance.
Lu Wei