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Figure 4.
Fig. 4. The movement of the "conformational switch" in
the flexible segment (residues 80-98) trapped in four different
ArsC crystals. Starting with a helix in the reduced ArsC wild
type (blue), via oxidized ArsC C89L (Cys-10-Cys-82) in the first
(yellow) and in the second (red) molecule in the asymmetric unit
to finally looping out to form the C82-C89 disulfide (green).
The two arrows indicate the movement of L92 and C89.
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