Figure 3. Conserved motifs in flavin monooxygenases (FMOs) and in YUC proteins.
(A) The conserved motifs in all of FMOs. The putative FAD and NADPH binding sites are indicated.
(B) Conserved motifs among Arabidopsis YUC proteins. In addition to the well conserved glycine residues in the FAD binding and NADPH binding sites, residues near the GXGXXG motifs appear to be conserved among YUC proteins.
(C) Mutations that disrupt YUC1 function in Arabidopsis were indicated. Note that mutations in the conserved glycine residues disrupted YUC1 functions.