title: Herpes simplex virus type 1 and 2 intracellular p40: type-specific and cross-reactive antigenic determinants on peptides generated by partial proteolysis.
abstract: Intracellular p40 is a class of protein ranging in molecular weight from 39,000 to 45,000 that is immunoprecipitated from herpes simplex virus type 1 (HSV-1)- and HSV-2-infected cell extracts by mouse monoclonal antibodies or guinea pig antisera against HSV-1 and HSV-2 nucleocapsid p40. Analysis by a two-dimensional gel system showed that HSV-1 and HSV-2 intracellular p40 each consisted of three major components. However, these HSV-1 and HSV-2 proteins differed in charge and size. Analysis of Staphylococcus aureus V8 protease partial digests by two-dimensional gel electrophoresis indicated that none of the peptides of HSV-1 and HSV-2 intracellular p40 were identical. Immunoprecipitation of the partial digest products of intracellular p40-1 and p40-2 with homologous and heterologous guinea pig antisera resulted in the precipitation of various combinations of peptides indicating the presence of either type-specific or cross-reactive antigenic determinants.
mesh_terms: D000956:Antigens, Viral; D003429:Cross Reactions; D004591:Electrophoresis, Polyacrylamide Gel; D000939:Epitopes; D010447:Peptide Hydrolases; D018139:Simplexvirus / Q000032:analysis* / Q000145:classification / Q000276:immunology; D014764:Viral Proteins / Q000032:analysis / Q000276:immunology*
chemical_list: D000956:Antigens, Viral; D000939:Epitopes; D014764:Viral Proteins; D010447:Peptide Hydrolases