Figure 3.
Fig. 3. A, stereoview of the [2Fe-2S] cluster and its
ligands from the WT ( cyan), C55S (yellow), and C59S (purple)
structures upon superposition of the corresponding 101 C atoms of
the three structures, showing the varying degree of positional
shifts that occur in the inorganic core as well as residues 55
and 59 caused by the cysteine to serine substitutions. B,
stereoview of the same region, viewed from a direction
perpendicular to that in A, illustrates the varying degrees to
which the inorganic core is distorted in each structure. The
color scheme is the same as in A.
atoms of
the three structures, showing the varying degree of positional
shifts that occur in the inorganic core as well as residues 55
and 59 caused by the cysteine to serine substitutions. B,
stereoview of the same region, viewed from a direction
perpendicular to that in A, illustrates the varying degrees to
which the inorganic core is distorted in each structure. The
color scheme is the same as in A.