(A) The loop, P195-G203, is shown in sticks and spheres; Cys379 and FAD
are shown in sticks. The distance between Cys201:SG and FAD:C4a (3.5 Å)
is indicated. Lys344 (not shown) is behind V199-K200.
(B and C) Mono and wall-eye stereoviews of the docking of sulfite (B)
and glutathione (C), respectively, to a proposed binding site. The
semitransparent protein surface is colored white. Hydrogen bonds are indicated
by dashed black lines. Sulfite, FAD, DCQ, and amino acid residues are shown as
sticks. Glutathione is shown as ball and sticks.
See also Figures
S1 and S8.