title: An electron microscopic analysis of rRNAs and tRNAs and of the assembly in vitro of the 50-S subunits from Escherichia coli ribosomes.
mesh_terms: D004926:Escherichia coli / Q000648:ultrastructure*; D008854:Microscopy, Electron; D012335:RNA, Ribosomal / Q000032:analysis*; D012343:RNA, Transfer / Q000032:analysis*; D012270:Ribosomes / Q000032:analysis / Q000648:ultrastructure*
chemical_list: D012335:RNA, Ribosomal; D012343:RNA, Transfer