title: RNA complementary to the genome of RNA tumor viruses in virions and virus-producing cells.
abstract: Cells producing type C (avain sarcoma virus) or type B (mouse mammary tumor virus) RNA tumor viruses contain small amounts of RNA complementary to the viral genomes. The negative strands are complementary to at least 30 to 45% of the viral genomes and are found as RNA-RNA duplexes in the nucleus and cytoplasm of infected cells and in mature virions.
mesh_terms: D000818:Animals; D001358:Avian Sarcoma Viruses / Q000032:analysis*; D002467:Cell Nucleus / Q000032:analysis*; D046508:Culture Techniques; D003593:Cytoplasm / Q000032:analysis*; D004372:Ducks; D008324:Mammary Tumor Virus, Mouse / Q000032:analysis*; D009691:Nucleic Acid Denaturation; D009693:Nucleic Acid Hybridization; D012367:RNA, Viral / Q000032:analysis*; D012260:Ribonucleases / Q000378:metabolism
chemical_list: D012367:RNA, Viral; D012260:Ribonucleases