title: Purification of azotophore membranes containing the nitrogenase from Azotobacter vinelandii.
mesh_terms: D001395:Azotobacter / Q000166:cytology / Q000201:enzymology*; D002458:Cell Fractionation; D002474:Cell-Free System; D002499:Centrifugation, Density Gradient; D002849:Chromatography, Gas; D005069:Evaluation Studies as Topic; D005292:Ferricyanides; D005990:Glycerol; D007700:Kinetics; D008566:Membranes / Q000201:enzymology; D008722:Methods; D008854:Microscopy, Electron; D009591:Nitrogenase / Q000302:isolation & purification*; D009940:Organoids / Q000201:enzymology; D011312:Pressure; D012995:Solubility; D013053:Spectrophotometry
chemical_list: D005292:Ferricyanides; D009591:Nitrogenase; D005990:Glycerol