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Article

The expression of a novel antisense gene mediates incompatibility within the large repABC family of alpha-proteobacterial plasmids.

Molecular microbiology - 1 Jan 2005

MacLellan Shawn R, Smallbone Laura A, Sibley Christopher D, Finan Turlough M

Abstract excerpt

Large extrachromosomal replicons in many members of the alpha-proteobacteria encode genes that are required for plant or animal pathogenesis or symbiosis. Most of these replicons encode repABC genes that control their replication and faithful segregation during cell division. In addition to its chromosome, the plant endosymbiont Sinorhizobium meliloti also maintains the 1.4 Mb pSymA and 1.7 Mb pSymB symbiotic...

Topics

Agrobacterium tumefaciens
Alphaproteobacteria
Bacterial Proteins
Base Sequence
DNA Helicases
DNA, Intergenic
DNA-Binding Proteins
Escherichia coli
Gene Expression Regulation, Bacterial
Molecular Sequence Data

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Mutation

Plasmids

Promoter Regions, Genetic

RNA, Antisense

Replicon

Sinorhizobium meliloti

Symbiosis

Trans-Activators

Source

Identifiers

PMID: 15659174
DOI: 10.1111/j.1365-2958.2004.04412.x

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 31 Aug 2026.

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The expression of a novel antisense gene mediates incompatibility within the large repABC family of alpha-proteobacterial plasmids.PMID 15659174Read ↗

Identification of a megaplasmid centromere reveals genetic structural diversity within the repABC family of basic replicons.Semantic proximity Read ↗

Mutations in an antisense RNA, involved in the replication control of a repABC plasmid, that disrupt plasmid incompatibility and mediate plasmid speciation.Semantic proximity Read ↗

Counter-transcribed RNAs of Rhizobium leguminosarum repABC plasmids exert incompatibility effects only when highly expressed.Semantic proximity Read ↗

The plasmid ColIb-P9 antisense Inc RNA controls expression of the RepZ replication protein and its positive regulator repY with different mechanisms.Semantic proximity Read ↗

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Ability of IncP-9 plasmid pM3 to replicate in Escherichia coli is dependent on both rep and par functions.Semantic proximity Read ↗

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Positive and negative regulations of plasmid CoLIb-P9 repZ gene expression at the translational level.Semantic proximity Read ↗

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