regulation. We recently found that hybrid DNA: RNA G‐quadruplexes (HQs) can form during
in vitro transcription. However, it is unclear whether they can form in cells. Evidence is
presented supporting their formation in plasmids in bacterial cells. The formation of the HQs
is indicated by a unique pattern of prematurely terminated transcripts under two conditions
where the RNA transcripts do or do not participate in G‐quadruplex assembly and further …