Fig. 2.

Three-dimensional structure of E. coli YadB and comparison with homologous GluRS. The structures of YadB has been superimposed on that of the T. thermophilus GluRS (1GLN, 6). The figure displays YadB surface (C, white; O, red; N, blue) and GluRS ribbon trace (yellow). The modeled aminoacyl-adenylate is emphasized in green. The coordinates of YadB are deposited in the Protein Data Bank (www.pdb.org; PDB ID code 1NZJ). Figure 2 was made with pymol.