流感病毒核蛋白和M蛋白决定了病毒的型特异性,也是根据流感病毒核蛋白抗原性的不同,将其分为A、B、C3型。流感病毒的核蛋白是CTL反应的主要靶抗原,能诱导机体的细胞免疫,能产生种间交叉的免疫保护,不受表面结构蛋白亚型的影响;且流感病毒核蛋白通过病毒的RNA参与病毒生活周期的多个阶段,在流感病 Influenza virus nucleoprotein and M protein determine the type specificity of the virus, but also according to the different antigenicity of the influenza virus nucleoprotein, it is divided into A, B, C3 type. The nucleoprotein of influenza virus is the main target antigen of CTL reaction, which can induce the cellular immunity of the organism and can produce cross-species immunoprotection, which is not affected by the surface structural protein subtype. The influenza virus nucleoprotein is involved in the virus through the viral RNA Multiple stages of the life cycle in flu