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1: Mol Cell. 2006 Mar 17;21(6):849-59.
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Exon tethering in transcription by RNA polymerase II.

Dye MJ, Gromak N, Proudfoot NJ.

Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxford OX1 3RE, United Kingdom.

There is an emerging consensus that RNA polymerase II (RNA Pol II) transcription and pre-mRNA processing are tightly coupled events. We show here that exons flanking an intron that has been engineered to be co-transcriptionally cleaved are accurately and efficiently spliced together. These data underline the close coupling of processes in the initial stages of protein-encoding gene expression and provide evidence for a molecular tether connecting emergent splice sites in the pre-mRNA to transcribing RNA Pol II. This observation suggests that for some genes a continuous intron transcript is not required for pre-mRNA splicing in vivo.

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PMID: 16543153 [PubMed - indexed for MEDLINE]