[Pelvic actinomycosis: a misleading picture].

Pelvic actinomycosis is a rare chronic suppurative granulomatous disease associated with an intrauterine contraceptive device. Next pelvic organs can be affected but also more distant organs, to lead to different clinical situations. The diagnosis is therefore often difficult.

RNA footprint mapping of RNA polymerase II molecules stalled in the intergenic region of polyomavirus DNA.

RNA polymerase II molecules that transcribe the late strand of the 5.3-kb circular polyomavirus genome stall just upstream of the DNA replication origin, in a region containing multiple binding sites for polyomavirus large T antigen. Stalling of RNA polymerases depends on the presence of functional large T antigen and on the integrity of large T antigen binding site A.