title: Construction of 30S particles from ribosomal proteins and 23S particles induced by ultraviolet light.
mesh_terms: D002499:Centrifugation, Density Gradient; D004926:Escherichia coli / Q000378:metabolism; D008274:Magnesium / Q000378:metabolism; D014176:Protein Biosynthesis; D011506:Proteins / Q000528:radiation effects; D011830:Radiation Effects; D012270:Ribosomes / Q000378:metabolism* / Q000528:radiation effects; D014316:Tritium; D014466:Ultraviolet Rays
chemical_list: D011506:Proteins; D014316:Tritium; D008274:Magnesium