title: Helical arrays of Escherichia coli small ribosomal subunits produced in vitro.
mesh_terms: D004587:Electrophoresis, Agar Gel; D004926:Escherichia coli / Q000648:ultrastructure*; D008854:Microscopy, Electron; D008954:Models, Biological; D055095:Optics and Photonics; D012270:Ribosomes / Q000648:ultrastructure*