Figure 1.

Linear array of conserved motifs in PNDR family. A diagram for each initial protein cluster is presented in MAST-style. Blocks with known function are depicted in color as follows: (blue) NADH-binding site; (green) FAD-binding sites; (yellow, orange and red) disulfide redox active sites for class I, II and III, respectively. The common blocks between different clusters are shown encircled, and a total of 24 different blocks are included. Names at the left indicate the 11 initial protein groups and at the right the 4 final clusters. The scheme does not represent the real length of the sequences.