Figure 2.

(A) A portion of the alignment of two plant fatty acid hydroxylases and seven desaturases (residues 312–327 of Arabidopsis Fad2). (B) An example of CPDL output for the same portion of the alignment. Positions with conserved amino acid residues differences are marked with triangles in the main track. This display was generated using the mask that flags residue properties only for those positions that are marked with triangles in the main track. For example, position 322 has hydrophobic, nonpolar alanine in class 1 but is hydrophilic, polar serine in class 2. The CasFad2 enzyme sequence from castor bean is incomplete.