title: [Heterogenicity of influenza A virus NP protein].
abstract: Three classes of NP-proteins were detected by 7% polyacrylamide gel electrophoresis of virion proteins of influenza A various strains. Peptide maps of these proteins vary. The pattern of the discrepancies indicates the presence of two types of influenza A virus NP-protein. Incubation during 30 h at 37 degrees C of the preparations of intact viral particles and particles destroyed by nonion detergent NP-40 does not result in changes of the NP, NP2 and NP3 proteins ratio, that is an evidence of their intracellular origin.
mesh_terms: D000818:Animals; D004372:Ducks / Q000382:microbiology; D004591:Electrophoresis, Polyacrylamide Gel; D006801:Humans; D009980:Influenza A virus / Q000032:analysis*; D009698:Nucleoproteins / Q000032:analysis* / Q000145:classification; D009842:Oligopeptides / Q000032:analysis; D013045:Species Specificity; D014764:Viral Proteins / Q000032:analysis*
chemical_list: D009698:Nucleoproteins; D009842:Oligopeptides; D014764:Viral Proteins
vernacular_title: Geterogennost' NP-belka virusov grippa A.