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Figure 3.
Active site region of BdbD.A, detailed view of the N terminus
of helix α1 of sBdbD showing the Cys-Pro-Ser-Cys active site of
sBdbD and the closely lying cis-proline (Pro^193), which is
invariant in all thioredoxin-like proteins. B and C, electron
density (contoured at 1.0σ) of the active site region of sBdbD
in oxidized and reduced states, respectively.
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