title: Difference of fine structure between closed and open forms of Escherichia coli 30S ribosomal small subunit by negative staining.
mesh_terms: D004926:Escherichia coli / Q000648:ultrastructure*; D008854:Microscopy, Electron; D012270:Ribosomes / Q000648:ultrastructure*; D013194:Staining and Labeling