title: Ribonucleotide-deoxyribonucleotide linkages at the origin of DNA replication of colicin E1 plasmid.
mesh_terms: D003086:Bacteriocin Plasmids; D004261:DNA Replication; D003854:Deoxyribonucleotides; D010957:Plasmids; D012265:Ribonucleotides
chemical_list: D003854:Deoxyribonucleotides; D012265:Ribonucleotides