Figure 8

Hypothetical scheme of PO41 repeat transcripts structure in different nuclear compartments. PO41 repeat transcripts are shown in red, elongating form of RNA polymerase II – in green, nucleoplasm and chromatin – in blue. Major foci of PO41 repeat transcripts associated with RNA polymerase II presumably represent nascent RNA (a) while dispersed PO41 repeat transcripts localized in euchromatin or interchromatin space presumably represent released RNA (b). In interphase nucleus, PO41 RNA is single-stranded with short double-stranded regions due to appearance of inverted repeats (b).