Characterization of infectious bronchitis virus using monoclonal antibodies.
Three monoclonal antibodies (MABs) reactive against two structural proteins--the nucleoprotein (NP) or the surface (S) protein--of avian infectious bronchitis virus (IBV) were produced and characterized. The MABs did not neutralize virus infectivity or inhibit hemagglutination. Their reactivity patterns with the homologous strain and eight heterologous strains of IBV were determined using the indirect immunoperoxidase test, the indirect immunofluorescent test, transfer-immunoblotting of separated proteins, and a dot-immunoblotting assay (DIA). Two MABs, NP- or S-protein-specific, reacted with all nine strains; one (NP-specific) reacted with only two strains. The two MABs reacting with all nine strains of IBV also detected 18 IBV field isolates of unknown serotype in the DIA. The MAB detecting only two strains did not react in the DIA. The diagnostic application of these MABs appears promising.
Wainright
P O
PO
Department of Avian Medicine, College of Veterinary Medicine, University of Georgia, Athens 30602.
Villegas
P
P
Brugh
M
M
Lukert
P D
PD
D000818:Animals; D000911:Antibodies, Monoclonal / Q000276:immunology*; D000956:Antigens, Viral / Q000276:immunology*; D003332:Coronaviridae / Q000276:immunology*; D000939:Epitopes; D005455:Fluorescent Antibody Technique; D006385:Hemagglutination Inhibition Tests; D015151:Immunoblotting; D007124:Immunoenzyme Techniques; D001351:Infectious bronchitis virus / Q000145:classification / Q000276:immunology*; D008565:Membrane Proteins / Q000276:immunology; D019590:Nucleocapsid Proteins; D009698:Nucleoproteins; D014758:Viral Core Proteins / Q000276:immunology*; D014764:Viral Proteins / Q000276:immunology*
D000911:Antibodies, Monoclonal; D000956:Antigens, Viral; D000939:Epitopes; D008565:Membrane Proteins; D019590:Nucleocapsid Proteins; D009698:Nucleoproteins; D014758:Viral Core Proteins; D014764:Viral Proteins