title: Temperature-sensitive mutants of murine leukemia virus. 3. Mutants defective in helper functions for sarcoma virus fixation.
mesh_terms: D000818:Animals; D000956:Antigens, Viral; D002471:Cell Transformation, Neoplastic; D002478:Cells, Cultured; D003673:Defective Viruses; D017988:Gammaretrovirus; D006378:Helper Viruses; D051379:Mice; D009154:Mutation; D011925:Rauscher Virus; D012509:Sarcoma / Q000382:microbiology*; D013696:Temperature; D010948:Viral Plaque Assay; D014779:Virus Replication
chemical_list: D000956:Antigens, Viral