FIG. 3.

Alignment of some NAD(P)H-dependent reductase components. The shaded Thr residue is the first residue of PDR and is marked by the numeral 1 in parentheses. Identical and similar amino acid residues among the aligned sequences are marked by asterisks and dots, respectively. Conserved residues for plant type [2Fe-2S] cluster binding and flavin binding are indicated by arrows, and the Cys residues involved in the binding of the [2Fe-2S] cluster are shown against a solid background. Conserved residues for NAD(P)H binding are boxed.