title: Processing of 45 s nucleolar RNA.
mesh_terms: D002466:Cell Nucleolus / Q000378:metabolism*; D046508:Culture Techniques; D004586:Electrophoresis; D008715:Methionine / Q000378:metabolism; D008745:Methylation; D008970:Molecular Weight; D010710:Phosphates / Q000378:metabolism; D017955:Poliovirus; D012313:RNA / Q000032:analysis / Q000378:metabolism*; D012367:RNA, Viral / Q000378:metabolism; D014316:Tritium
chemical_list: D010710:Phosphates; D012367:RNA, Viral; D014316:Tritium; D012313:RNA; D008715:Methionine