1.Ibragimov A, Bylino O, Kyrchanova O, Shidlovskii Y, White R, Schedl P, Georgiev P. The Variable CTCF Site from Drosophila melanogaster Ubx Gene is Redundant and Has no Insulator Activity. Dokl Biochem Biophys. 2022;505(1):173–175. PMCID: PMC9613721 Reference Link