title: Site-specific mutagenesis in the analysis of a viral replicon.
mesh_terms: D001483:Base Sequence; D004261:DNA Replication; D004270:DNA, Circular / Q000096:biosynthesis*; D004279:DNA, Viral / Q000096:biosynthesis*; D009154:Mutation; D011995:Recombination, Genetic; D013539:Simian virus 40 / Q000378:metabolism*; D014779:Virus Replication
chemical_list: D004270:DNA, Circular; D004279:DNA, Viral