Replication of R6K γ origin in vitro: discrete start sites for DNA synthesis dependent on π and its copy-up variants11Edited by G. Smith

The regulation of the plasmid R6K gamma origin (gamma ori) is accomplished through the ability of the pi protein to act as an initiator and inhibitor of replication. Hyperactive variants of this protein, called copy-up pi, allow four to tenfold increases of gamma ori plasmid DNA in vivo. The higher activity of copy-up pi variants could be...More