Beggs lab paper featured in Molecular Cell. Image Authors Keerthi T. Chathoth, J. David Barrass, Shaun Webb and Jean D. Beggs Summary Transcriptional elongation is inhibited when cotranscriptional pre-spliceosome formation is blocked. The defect is characterised by RNA polymerase with hyperphosphorylated Serine 5 (red P) on the CTD accumulating on introns. Related links Journal Link This article was published on 2024-06-17