Feline herpesvirus type 1 glycoproteins eliciting virus neutralizing and hemagglutination-inhibiting antibodies

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Abstract
Monoclonal antibodies (MoAbs) to feline herpesvirus type 1 (FHV-1) were produced to identify the virus-specified immunogenic proteins. When antigens recognized by the MoAbs were investigated by immunoblot and immunoprecipitation assays using FHV-1-infected cell lysate, four groups of immunogenic proteins were identified. MoAbs directed against 60 kDa, 113 kDa, and 143 kDa/108 kDa glycoproteins had virus neutralizing activities, but those against 170 kDa protein did not. Furthermore, MoAbs to the 60 kDa glycoprotein also showed hemagglutination-inhibition activity, indicating that this glycoprotein might be the hemagglutinin.