||Bacteria Escherichia coli
||Lutz R, Bujard H. Independent and tight regulation of transcriptional units in Escherichia coli via the LacR/O, the TetR/O and AraC/I1-I2 regulatory elements. Nucleic Acids Res. 1997 Mar 15 25(6):1203-10 p.1205 table 1PubMed ID9092630
||"The intracellular copy numbers were determined by comparing luciferase activity of cells harbouring the respective plasmids with the activity in cells containing only a single luciferase expression unit integrated in the chromosome (data not shown)."
||"Module II contains an origin of replication which is protected from outside transcriptional readthrough (ref 14) by two terminators." See figure 2