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Figure 6.
Figure 6. Three views of the electrostatic surface
potential of OmpRc. Red indicates a negatively charged region,
blue indicates a positively charged region and white indicates a
neutral or hydrophobic region. (a) The molecule is oriented
similarly to Figure 5b, displaying the positive electrostatic
surface potential of the DNA-binding surface. (b) The molecule
is oriented similarly to Figure 5a. The a loop surface, that may
interact with the a subunit of RNA polymerase, is rather neutral
or hydrophobic. (c) This remarkable, negatively charged face of
the protein lies at the C-terminal end of the recognition helix.
(Figure produced using GRASP [73].)
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