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Article

MobB protein stimulates nicking at the R1162 origin of transfer by increasing the proportion of complexed plasmid DNA.

Journal of bacteriology - 1 Oct 1996

Perwez T, Meyer R

Abstract excerpt

An essential early step in conjugal mobilization of R1162, nicking of the DNA strand that is subsequently transferred, is carried out in the relaxosome, a complex of two plasmid-encoded proteins and DNA at the origin of transfer (oriT). A third protein, MobB, is also required for efficient mobilization. We show that in the cell this protein increases the proportion of molecules specifically nicked at oriT,...

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Identifiers

PMID: 8824623
DOI: 10.1128/jb.178.19.5762-5767.1996
PMCID: PMC178417

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

Related research

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Research trail→

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MobB protein stimulates nicking at the R1162 origin of transfer by increasing the proportion of complexed plasmid DNA.PMID 8824623Read ↗

Recognition of oriT for DNA processing at termination of a round of conjugal transfer.Semantic proximity Read ↗

TraY and integration host factor oriT binding sites and F conjugal transfer: sequence variations, but not altered spacing, are tolerated.Semantic proximity Read ↗

Characterization of a relaxase belonging to the MOBT family, a widespread family in Firmicutes mediating the transfer of ICEsSemantic proximity Read ↗

A Translocation Motif in Relaxase TrwC Specifically Affects Recruitment by Its Conjugative Type IV Secretion SystemSemantic proximity Read ↗

Comparative analysis of MOB <sub>Q4</sub> plasmids demonstrates that MOB <sub>Q</sub> is a <i>cis</i> -acting-enriched relaxase protein familySemantic proximity Read ↗

Interaction between the RP4 coupling protein TraG and the pBHR1 mobilization protein MobSemantic proximity Read ↗

Molecular handcuffing of the relaxosome at the origin of conjugative transfer of the plasmid R1162.Semantic proximity Read ↗

Tyrosine partners coordinate DNA nicking by the Salmonella typhimurium plasmid pCU1 relaxase enzyme.Semantic proximity Read ↗

Catalytic domain of plasmid pAD1 relaxase TraX defines a group of relaxases related to restriction endonucleasesSemantic proximity Read ↗

Relaxase DNA binding and cleavage are two distinguishable steps in conjugative DNA processing that involve different sequence elements of the nic site.Semantic proximity Read ↗

A high security double lock and key mechanism in HUH relaxases controls oriT-processing for plasmid conjugation.Semantic proximity Read ↗

Discovery of a new family of relaxases in Firmicutes bacteriaSemantic proximity Read ↗

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