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Figure 3.
Figure 3. The charge distribution of s-Sec1. Surface
potential representations of s-Sec1 colored according to
electrostatic potential: < -10 k[B]T, red; > + 10 k[B]T, blue
(k[B], Boltzmann constant; T, absolute temperature). Exposed
residues are labeled with the sequence number. (a) s-Sec1
rotated by approximately 90° (with respect to the orientation in
(b)) to indicate the negatively charged interface of domains I
and II. (b) The orientation of the molecule corresponds
approximately to the one shown in Figure 2a; it shows a
prominent negatively charged groove within the central part of
the molecule. The figures were generated using the program GRASP
[77].
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