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Figure 4.
Figure 4. The proposed SecA binding site. The orientation is
orthogonal to that in Fig. 3. The drawing on the left is the
solvent accessible surface of the SecB tetramer. The surface
encompassing Asp 27, Glu 31, and Glu 86 is colored green; the
surface encompassing Ile 84 is colored yellow. These four
residues have been shown to be important for SecB's interaction
with SecA^7, 16. The drawing on the right is the same surface
except that it is colored based on the electrostatic potential
of the molecule (ranging from -10 to +10kT). Figure produced
using Grasp36.
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