Plasmids 101: Stringent Regulation of Replication
Type
Blog Post
Published
June 20, 2024, 1:15 p.m.
...replication. But pSC101 requires a third component: RepA, a protein encoded by pSC101 itself. RepA binds...mechanisms of stringently controlled plasmids pSC101 and ColIb-P9. pSC101 copy number is regulated by iterons. ...mechanism of plasmids under stringent control, such as pSC101.
DNA replication and regulation in bacteria
Before...balance the total plasmid number.
Let’s consider pSC101. This plasmid is stringently controlled and has...the bacterial chromosome.
Since replication of pSC101 depends on host-encoded proteins, it can be regulated... and IHF. RepA also controls the copy number of pSC101 through a negative feedback cycle. As with DnaA...expression and thereby the overall replication of pSC101 (del Solar et al., 1998). If that’s not enough ...