Figure 2.
Fig. 2. (A) Upper and lower surfaces of helix-turn-helix
protomer. Shown is a stereo pair showing side chains in the
helix-helix interface (arrow): upper surface (residues 8, 11,
16, 26, and 30; green) and lower surface (residues 5, 9, 13, 17,
21, 23, 24; blue). The side chain of L12 (red) is buried in this
interface. I27 is shown in magenta. The position of G20 C[ ]is
shown as a red sphere. The main chain is shown in gray; carbonyl
oxygens are omitted. (B) Stereo pair showing structure of one
protomer relative to the other (gray ribbon). The coloring
scheme is as in A. One surface of the protomer forms an internal
dimeric interface whereas the other is predicted to bind to
DCoH. Residues 7 and 29 (gray) belong to neither vertical
surface. The view is rotated by 90° from that in A.
]is
shown as a red sphere. The main chain is shown in gray; carbonyl
oxygens are omitted. (B) Stereo pair showing structure of one
protomer relative to the other (gray ribbon). The coloring
scheme is as in A. One surface of the protomer forms an internal
dimeric interface whereas the other is predicted to bind to
DCoH. Residues 7 and 29 (gray) belong to neither vertical
surface. The view is rotated by 90° from that in A.