title: Separation by density gradient centrifugation of two types of membranes from spheroplast membrane of Escherichia coli K12.
mesh_terms: D001426:Bacterial Proteins / Q000032:analysis; D002241:Carbohydrates / Q000032:analysis; D002498:Centrifugation; D002499:Centrifugation, Density Gradient; D003956:Dialysis; D004926:Escherichia coli / Q000032:analysis*; D005696:Galactosidases / Q000096:biosynthesis*; D008566:Membranes / Q000032:analysis* / Q000201:enzymology; D008854:Microscopy, Electron; D010743:Phospholipids / Q000032:analysis; D011523:Protoplasts / Q000032:analysis*; D012329:RNA, Bacterial / Q000032:analysis
chemical_list: D001426:Bacterial Proteins; D002241:Carbohydrates; D010743:Phospholipids; D012329:RNA, Bacterial; D005696:Galactosidases