1. Volume 89, Issue 4, Pages 491-494 (May 1997)
Pre-mRNA Processing and the CTD of RNA Polymerase II: The Tail That Wags the Dog? 
Eric J. Steinmetz 
Cell 
Volume 89, Issue 4, Pages (May 1997)
DOI: /S (00)

2. Figure 1
Schematic Representation of the Association of Pre-mRNA Processing Factors with the Carboxy-Terminal Domain (CTD) of Transcriptionally Engaged RNA Polymerase II
Potential physical and functional interactions between splicing, polyadenylation, and elongation factors are indicated by double-headed arrows.
Cell  , DOI: ( /S (00) )