Fig. 10: The mechanism of template strand promoter recognition in dsDNA.
From: Structural basis of template strand deoxyuridine promoter recognition by a viral RNA polymerase
For clarity, both proteins comprising the N- and C-terminal parts of the β and β′ subunits are shown in the same color (light yellow for β and light green for β′). Nucleotide bases are displayed as short sticks. The putatively degenerate, third position base −9C of the promoter-complementary motif −11AA(C)A−8 is shown as a semitransparent stick. The ‘+’ signs indicate positively charged elements of the gp226 NTD and CTD molecular surface that participate in DNA binding. See the main text for full explanation.
