Leman, D.V., Parshikov, A.F., Georgiev, P.G., Maksimenko, O.G. (2014). [Organization of the Drosophila melanogaster SF1 insulator and its role in transcription regulation in transgenic lines].  Genetika, Moscow 50(4): 392--399.

FBrf0227663

Research paper

The SF1 insulator was found to contain a polyadenylation signal, which corresponded to the functional polyadenylation signal in embryonic S2 cells and the transgenic lines of Drosophila and bi-directional promoter that functioned in S2 cells. The studies performed did not confirm the ability of the SF1 insulator to protect expression of reporter gene white from the chromosome position effect in transgenic lines.