R1 plasmid

[2] The R1 plasmid imparts multi-drug antibiotic resistance to its host bacteria.

[4][page needed] R1 must rely on a "Type II" segregation system.

The par system determines the position of the replicon, ensuring that at the end of DNA Replication, the plasmid copies are well-positioned to start cell division.

ParM produces two important cytoskeletal proteins, MreB, and actin.

ParM is directed to move the plasmid copies to opposite cell poles.

Figure 1. Map of the R1 Plasmid isolated by Katherine E. L. Cox and Joel F. Schildbach.