title: The conformation of the 50S ribosomal subunit of Bacillus subtilis.
mesh_terms: D001412:Bacillus subtilis; D002499:Centrifugation, Density Gradient; D005612:Freeze Drying; D008854:Microscopy, Electron; D008954:Models, Biological; D012270:Ribosomes / Q000032:analysis*