title: Stepwise degradation of poliovirus and top component by concentrated urea.
mesh_terms: D002247:Carbon Isotopes; D002499:Centrifugation, Density Gradient; D004591:Electrophoresis, Polyacrylamide Gel; D006367:HeLa Cells; D006801:Humans; D008274:Magnesium / Q000494:pharmacology; D008854:Microscopy, Electron; D010455:Peptides / Q000032:analysis; D010759:Phosphorus Isotopes; D010772:Phosphotungstic Acid; D017955:Poliovirus / Q000032:analysis / Q000187:drug effects* / Q000254:growth & development / Q000302:isolation & purification; D011489:Protein Denaturation; D012367:RNA, Viral / Q000302:isolation & purification; D012703:Serotyping; D013194:Staining and Labeling; D013696:Temperature; D014316:Tritium; D014508:Urea / Q000494:pharmacology*; D014764:Viral Proteins / Q000032:analysis / Q000302:isolation & purification
chemical_list: D002247:Carbon Isotopes; D010455:Peptides; D010759:Phosphorus Isotopes; D012367:RNA, Viral; D014764:Viral Proteins; D014316:Tritium; D010772:Phosphotungstic Acid; D014508:Urea; D008274:Magnesium