title: Variation of the conformational states of Escherichia coli glutamine synthetase by interaction with different divalent cations.
mesh_terms: D002104:Cadmium; D002118:Calcium; D002384:Catalysis; D002413:Cations, Divalent; D003035:Cobalt; D004789:Enzyme Activation; D004926:Escherichia coli / Q000201:enzymology*; D005974:Glutamate-Ammonia Ligase / Q000037:antagonists & inhibitors; D005971:Glutamates; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008274:Magnesium; D011487:Protein Conformation; D000644:Quaternary Ammonium Compounds; D013056:Spectrophotometry, Ultraviolet; D013095:Spermidine; D013096:Spermine; D014364:Tryptophan; D014443:Tyrosine
chemical_list: D002413:Cations, Divalent; D005971:Glutamates; D000644:Quaternary Ammonium Compounds; D002104:Cadmium; D013096:Spermine; D003035:Cobalt; D014443:Tyrosine; D014364:Tryptophan; D005974:Glutamate-Ammonia Ligase; D008274:Magnesium; D002118:Calcium; D013095:Spermidine