title: Ribosome structure: hand determination by electron microscopy of 30 S subunits.
mesh_terms: D004926:Escherichia coli / Q000648:ultrastructure; D008854:Microscopy, Electron; D008958:Models, Molecular; D012335:RNA, Ribosomal; D012269:Ribosomal Proteins; D012270:Ribosomes / Q000648:ultrastructure*
chemical_list: D012335:RNA, Ribosomal; D012269:Ribosomal Proteins