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Figure 2.
Figure 2. Protein-DNA Contacts
Protein-DNA contacts for
the (A) fkh250 and (B) fkh250^con* complexes. The Exd half site
is shaded cyan, the Hox half site is shaded red. Hydrogen bonds
are represented by solid lines and nonpolar interactions by
dotted lines. Interactions involving the protein main chain are
underlined. Green circles are visualized water molecules. The
fkh250 complex has more water-mediated contacts from residues
such as Gln50, which is oriented differently in the two
complexes, and Trp-17, which is positioned identically in the
two complexes.
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