How Do Haloarchaea Synthesize Aromatic Amino Acids?
Conserved sequence motifs of archaea, described by Siebers et al. , are marked with black boxes. Active site residues described by Morar et al. for M. jannaschii  are marked in boldface letters and red asterisks. The catalytic lysine residue (Lys237) determined for the E. coli class IA aldolase (DhnA type aldolase), is marked with a black asterisk . Identical residues are colored yellow (43%), and similar residues are colored orange (61%). The alignment was done using ClustalW multiple sequence alignment program (http://us.expasy.org). The secondary structure elements according to MJ0400  are shown at the top of the alignment. Lower panel: Superposition of MJ0400-F1,6-P complex (PDB:2QJG) with OE1472F. Colours indicate: Blue, MJ0400; red, OE1472F; green, F-1,6-P. The PDB file of OE1472F was generated by Phyre (http://us.expasy.org) and 3D structure was superimposed and viewed by Pymol (http://www.pymol.org/).