title: Biochemical and immunological properties of gag genecoded structural proteins of endogenous tyep C RNA tumor viruses of diverse mammalian species.
abstract: The major nonglycosylated structure proteins of mammalian type C RNA tumor viruses are synthesized in the form of a high molecular weight precursor coded for by a viral gene disignated "gag". Previous genetic analysis of a prototype virus isolated of mouse origin has led to a determination of the internal arragnement of the regions within the gag gene coding for individual structural proteins. In the present study, the biochemical properties of structural proteins of type C virus isolates of additional mammalian species were analyzed. The results obtained indicate that the biochemical properties of immunologically cross-reactive proteins have been highly conserved throughout the evolution of this group of viruses. Moreover, these findings provide a means of mapping the gag genes of a broad range of mammalian type C viruses. In view of the results obtained, a new nomenclature system for type C viral gag gene-coded translational products is proposed.
mesh_terms: D000818:Animals; D005815:Genetic Code; D008970:Molecular Weight; D012190:Retroviridae / Q000378:metabolism*; D013045:Species Specificity; D014764:Viral Proteins / Q000302:isolation & purification / Q000378:metabolism
chemical_list: D014764:Viral Proteins