title: Purification and properties of Azotobacter vinelandii glutamine synthetase.
mesh_terms: D000641:Ammonia / Q000494:pharmacology; D001395:Azotobacter / Q000201:enzymology*; D005974:Glutamate-Ammonia Ligase / Q000302:isolation & purification / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008274:Magnesium / Q000494:pharmacology; D008345:Manganese / Q000494:pharmacology; D011233:Precipitin Tests
chemical_list: D008345:Manganese; D000641:Ammonia; D005974:Glutamate-Ammonia Ligase; D008274:Magnesium