title: [Isoelectric variants of the principal polypeptide (p 30) of different strains of murine oncornaviruses].
abstract: The major murine oncornavirus polypeptide p 30 (30,000 daltons), which bears the conventional group-specific (gs) determinants, can be separated by isoelectric focusing into four classes, with isoelectric points (pI) of 5.5, 5.9, 6.7 and 7.1. All the Moloney stocks tested have a pI 5.9 p 30, while p 30's with three to four different pI values are found to coexist in other stocks, with the pI 6.7 form predominating in Gross virus stocks.
mesh_terms: D005622:Friend murine leukemia virus / Q000032:analysis; D007526:Isoelectric Point; D009052:Leukemia Virus, Murine / Q000032:analysis*; D008979:Moloney murine leukemia virus / Q000032:analysis; D012367:RNA, Viral / Q000032:analysis; D011925:Rauscher Virus / Q000032:analysis; D013045:Species Specificity; D014764:Viral Proteins / Q000032:analysis
chemical_list: D012367:RNA, Viral; D014764:Viral Proteins
vernacular_title: Répartition des variants iso-électriques du polypeptide principal (p 30) dans différentes souches d'oncornavirus murins