title: Refinements in the rapid isolation of glutamine synthetase from Escherichia coli.
mesh_terms: D002846:Chromatography, Affinity; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000201:enzymology*; D005974:Glutamate-Ammonia Ligase / Q000302:isolation & purification*; D007202:Indicators and Reagents; D008970:Molecular Weight; D011094:Polyethyleneimine
chemical_list: D007202:Indicators and Reagents; D011094:Polyethyleneimine; D005974:Glutamate-Ammonia Ligase