title: Structure of the Escherichia coli 50 S ribosomal subunit.
abstract: Freeze-dried and shadowed Escherichia coli 50 S ribosomal subunits have been examined by electron microscopy and a model of the subunit has been constructed. High resolution shadow casting has enabled us to determine independently the absolute hand of the subunit and to reveal some new structural features.
mesh_terms: D004926:Escherichia coli / Q000648:ultrastructure*; D005612:Freeze Drying; D008854:Microscopy, Electron; D008961:Models, Structural; D012270:Ribosomes / Q000648:ultrastructure*