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Figure 5.
Figure 5. Analysis of crystal structures of wild-type
CAP-DNA complexes herein and in the literature. (a) Plot of DNA
dihedral angle versus DNA bend angle in crystal structures of
wild-type CAP-DNA complexes (squares, crystal form-A; triangles,
crystal form-B; diamonds, crystal form-C; circles, crystal
form-C'). (b) Plot of CAP residue number versus frequency of
involvement in crystal-lattice contacts in crystal structures of
wild-type CAP-DNA complexes. (c) Surface representation of CAP
showing residues involved in crystal-lattice contacts in at
least 35% of crystal structures of wild-type CAP-DNA complexes
(circles, with greater diameters indicating higher frequencies
of involvement in crystal-lattice contacts), DNA recognition
helices (magenta), and transcription activating regions 1 (AR1,
blue), 2 (AR2, dark green), and 3 (AR3, olive green).
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