RNAI

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RNAI is a non-coding RNA that is an antisense repressor of the replication of some E. coli plasmids, including ColE1. Plasmid replication is usually initiated by RNAII,[1] which acts as a primer by binding to its template DNA. The complementary RNAI binds RNAII prohibiting it from its initiation role. The rate of degradation of RNAI is therefore a major factor in the control of plasmid replication. This rate of degradation is aided by the pcnB (plasmid copy number B) gene product,[2] which polyadenylates the 3' end of RNAI targeting it for degradation by PNPase.[3]

References

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Further reading

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External links

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