title: The presence of an additional protein associated with membrane-bound ribosomes of Azotobacter vinelandii.
mesh_terms: D001395:Azotobacter / Q000032:analysis* / Q000166:cytology; D001426:Bacterial Proteins / Q000032:analysis* / Q000302:isolation & purification / Q000502:physiology; D003593:Cytoplasm / Q000032:analysis; D004591:Electrophoresis, Polyacrylamide Gel; D046911:Macromolecular Substances; D008566:Membranes; D011485:Protein Binding; D012270:Ribosomes / Q000032:analysis*
chemical_list: D001426:Bacterial Proteins; D046911:Macromolecular Substances