title: An intracistronic region of gene A of bacteriophage piX174 not involved in progeny RF DNA synthesis.
mesh_terms: D002874:Chromosome Mapping; D003090:Coliphages / Q000378:metabolism; D004261:DNA Replication; D004279:DNA, Viral / Q000096:biosynthesis*; D005796:Genes; D005816:Genetic Complementation Test; D009154:Mutation; D014779:Virus Replication
chemical_list: D004279:DNA, Viral