[Antigenic characteristics of oncovirus persisting in continuous Syrian hamster cell culture].

The antigenic properties of an oncornavirus persisting in a continuous Syrian hamster cell culture (X-100) were studied. By the mutual immunodiffusion test it was shown that virions and virion-producing cells contained a protein antigenically identical to the main structural protein of oncornaviruses type C of Syrian hamsters. The materials tested contained no "GS-1" antigens (species-specific antigenic determinants of the main structural protein of mammalian oncornaviruses type C) of murine, feline, simian viruses or group-specific antigens of Bitner and Mason-Pfiser viruses.