title: [Structural organization and proteins of the human type-3 para-influenza virus].
abstract: The structure of human parainfluenza type 3 virus was studied by electron microscopy and virion fractionation by treatment with a detergent and high ionic strength. The protein spectrum of the virus was studied. The presence of 6 structural proteins was revealed of which two, HN and F, are glycoproteins. Intracellular cleavage of F0 protein into F1+2 proteins was demonstrated in a pulse-chase experiment. A tighter binding of HN protein than of F protein with the virus lipoprotein membrane was observed which may be useful for obtaining purified F protein preparations.
mesh_terms: D000818:Animals; D002458:Cell Fractionation; D004591:Electrophoresis, Polyacrylamide Gel; D000882:Haplorhini; D008854:Microscopy, Electron; D010224:Parainfluenza Virus 3, Human / Q000032:analysis / Q000302:isolation & purification / Q000648:ultrastructure*; D018108:Respirovirus / Q000648:ultrastructure*; D010948:Viral Plaque Assay; D014764:Viral Proteins / Q000032:analysis*; D014771:Virion / Q000032:analysis / Q000302:isolation & purification / Q000648:ultrastructure; D014776:Virus Cultivation; D014779:Virus Replication
chemical_list: D014764:Viral Proteins
vernacular_title: Strukturnaia organizatsiia i belki virusa paragrippa cheloveka tipa 3.