title: [Differentiation of matrix proteins of influenza A viruses using enzyme immunoassay].
abstract: Matrix protein is known as a type-specific structural protein of influenza viruses. An attempt has been made to find out whether or not strain-specific components could be detected from matrix protein, in addition to its type-specific antigen determinants. The technique of enzyme immune assay was chosen as the optional method to differentiate between matrix proteins of various influenza-A viruses. Antigen titration was undertaken of several matrix proteins, using two specific anti-matrix-protein sera in each case. Information regarding serological relationships between the tested matrix proteins of various influenza-A viruses was obtained from a quotient between the titres of one antigen, on the one hand, and the two anti-matrix-protein sera used in titration, on the other. Two matrix protein sub-types were established in the context of the influenza-A viruses tested. Sub-type M1 was attributable to older strains (A/PR/8 and A/FM/1), whereas the matrix protein of sub-type M2 was found to be present in more recent strains (A/Hongkong and A/Port Chalmers).
mesh_terms: D000956:Antigens, Viral / Q000032:analysis; D000939:Epitopes / Q000032:analysis; D007124:Immunoenzyme Techniques; D009980:Influenza A virus / Q000032:analysis* / Q000276:immunology; D009698:Nucleoproteins / Q000032:analysis; D014764:Viral Proteins / Q000032:analysis*
chemical_list: D000956:Antigens, Viral; D000939:Epitopes; D009698:Nucleoproteins; D014764:Viral Proteins
vernacular_title: Untersuchungen zur Differenzierung der Matrix-Proteine von Influenza-A-Viren mit dem Enzymimmunoassay.