The RepFIIA replicon of the natural Escherichia coli plasmid pRK100

Marjanca Starčič Erjavec; Darja Žgur-Bertok

doi:10.14720/abs.49.2.15068

Authors

Marjanca Starčič Erjavec
Darja Žgur-Bertok

DOI:

https://doi.org/10.14720/abs.49.2.15068

Keywords:

plasmid, RepFIIA replicon, Enterobacteriaceae, nucleotide divergence

Abstract

The aim of the presented study was to identify the similarity of the plasmid pRK100 RepFIIA replicon (replication region) with similar replicons of other known plasmids of Enterobacteriaceae. For this purpose, within the determined nucleotide sequence of pRK100, theRepFIIA replicon rep genes/regions were identiﬁed. The nucleotide sequences of the pRK100 determined rep genes/regions were subsequently compared with the nucleotide sequences of other RepFIIA replicon rep genes/regions deposited in GenBank. Further, the nucleotide divergence between them was calculated. The obtained results clearly demonstrated, that the individual pRK100 rep regions are the same/most similar to rep regions from different plasmids. RepA2 of pRK100 is most similar to repA2 of pCP301, pINV_F6_M1382, pWR501 and R1, copA is the same as copA of plasmids pC15-1a and R100, repA6 of pRK100 is the same as repA6 in plasmids pC15-1a, pCP301, pINV_F6_M1382, pWR501, R1 and R100, repA1 is most similar to repA1 of the plasmid p1658/79, and repA4 of pRK100 is most similar to repA4 of pC15-1a. Hence, the composition of the pRK100 RepFIIA replicon is mosaic and unique among the plasmids.

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References

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