FIG. 2.

Active site of ToMO A with a docked 2,4-DMP molecule (green). The carbon atoms of the residues that take part in the formation of the hypothetical subsites for methyl groups are red, yellow, green, magenta, orange, and cyan, whereas nitrogen and oxygen atoms of these residues are blue and light red, respectively. Iron ions are purple. All other atoms are white. The numbers of the residues are also shown. The color of the surface of each active site pocket corresponds to the color of the residues that form the cavity. Hydrogen atoms are shown only on the 2,4-DMP molecule.