[Immunoprecipitation, with an antiserum to ovalbumin, of protein NP from influenza A virus and of glycoprotein C from the herpes simplex type I virus].

Antisera to ovalbumin and to thyroliberin react in radioimmunoprecipitation and radioimmunoassay with NP protein of influenza A virus and C glycoprotein of herpes simplex virus whose mutual amino acid homology does not practically exceed the limits of homology in tripeptides. Both proteins contain a tripeptide area corresponding to thyroliberin tripeptide.