Figure 2. Autosomal transgenes attract Xist RNA way from Xi.
A. Map of Xist, FISH probes, and transgenes. P, PasI.
B. Serial Xist RNA/Tg DNA FISH in X-RA cells ± dox. Tg, transgene insertion site. Endogenous Xist, RA probe (RA); transgenic Xist, 5-Xist-riboprobe mix (5mix). Arrows, trans-migrated endogenous Xist to transgene site.
C. H3K27me3 immunostaining followed by DNA FISH in X-RA cells.
D. RNA FISH of female X+PE1 cells using probes E1 and E7 ± dox. Arrows, trans-migration of endogenous Xist to transgene site.
E. qRT-PCR for total (uRA) and endogenous (dRE) Xist.