title: Molecular symmetry and crystal packing of E. coli glutamine synthetase.
mesh_terms: D000249:Adenosine Monophosphate; D000645:Ammonium Sulfate; D003460:Crystallization; D004926:Escherichia coli / Q000201:enzymology*; D005974:Glutamate-Ammonia Ligase; D005978:Glutathione; D006639:Histidine; D046911:Macromolecular Substances; D008345:Manganese; D008854:Microscopy, Electron; D008961:Models, Structural; D014961:X-Ray Diffraction
chemical_list: D046911:Macromolecular Substances; D000249:Adenosine Monophosphate; D008345:Manganese; D006639:Histidine; D005974:Glutamate-Ammonia Ligase; D005978:Glutathione; D000645:Ammonium Sulfate