Figure 8: Pol II-specific insertions and TFIIH- and Mediator-binding interfaces on Pol II.
From: The X-ray crystal structure of the euryarchaeal RNA polymerase in an open-clamp configuration

(a) Pol II-specific insertions on the Pol II backbone model on the TFIIH-binding interface. (b) Pol II-specific insertions on the Mediator-binding interface. In both panels, insertions are shown as red plain surfaces with yellow-green boundaries on the Pol II backbone model, and the key subunits and domains are indicated. Magnified views of these insertions are shown in boxes.