title: Characterization of bovine parainfluenza virus type 3.
abstract: Bovine parainfluenza virus type 3 (PIV-3) has a buoyant density of 1.197. The RNA of PIV-3, like that of Sendai virus, is a single continuous chain which lacks polyadenylic acid sequences and tends to self-anneal to a marked extent. It has a sedimentation coefficient of 42S and a molecular weight of 4.5 X 10(6), being slightly smaller than Sendai virus RNA (47S, 5.3 X 10(6)). PIV-3 has 5 main structural proteins, of which 2 are glycoproteins. The molecular weights of protein 1, protein 2, protein 3, glycoprotein 1, and glycoprotein 2 were estimated to be 79,000, 68,000, 35,000, 69,000, and 55,000, respectively. Protein 2 was suggested to be nucleocapsid protein.
mesh_terms: D000818:Animals; D002213:Capsid; D002417:Cattle; D002498:Centrifugation; D055598:Chemical Phenomena; D002621:Chemistry; D004591:Electrophoresis, Polyacrylamide Gel; D008970:Molecular Weight; D010224:Parainfluenza Virus 3, Human; D018184:Paramyxoviridae Infections / Q000382:microbiology; D055585:Physical Phenomena; D010825:Physics; D012313:RNA; D018108:Respirovirus; D014764:Viral Proteins
chemical_list: D014764:Viral Proteins; D012313:RNA