title: Regulatory mutants of simian virus 40: constructed mutants with base substitutions at the origin of DNA replication.
mesh_terms: D001483:Base Sequence; D002874:Chromosome Mapping; D004261:DNA Replication; D004279:DNA, Viral / Q000096:biosynthesis; D003854:Deoxyribonucleotides / Q000032:analysis; D009154:Mutation; D010641:Phenotype; D013539:Simian virus 40 / Q000235:genetics* / Q000378:metabolism; D014779:Virus Replication
chemical_list: D004279:DNA, Viral; D003854:Deoxyribonucleotides