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Figure 1.
Figure 1. Structural Comparison of the PAS Domain of ThkA and
the PAS-Sensor Domain of FixL
(A) Structure of the PAS
domain of ThkA.
(B) In the FixL PAS domain, the structures
of the oxy (red) and deoxy (gray) forms are superimposed. The
heme in FixL is shown as a stick model.
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