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Reconstitutions of plasmid partition systems and their mechanisms [PDF]

Plasmid, 2017
Bacterial plasmid and chromosome segregation systems ensure that genetic material is efficiently transmitted to progeny cells. Cell-based studies have shed light on the dynamic nature and the molecular basis of plasmid partition systems.
Ling Chin Hwang
exaly   +6 more sources

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Partition-mediated plasmid pairing

Plasmid, 2005
Plasmid partition systems are essential for the stability and thus the survival of low-copy-number plasmids in growing bacterial populations. The partition reaction is responsible for proper intracellular distribution of plasmids in the bacterial cell cycle.
Barbara Funnell
exaly   +3 more sources

Chromosome and Plasmid Partition in Escherichia coli

Annual Review of Biochemistry, 1992
INTRODUCTION 283 ANALYSIS OF GENES INVOLVED IN CHROMOSOME PARTITION 286 Two Categories of Mechanisms.. . . . . . . . .. . . . . . ....... . . . . ... . . . . . . . . . . . . . ..... . . . . . . 286 Bacterial par Mutants Defective in Topoisomerases .... 286 muk Mutants; Mutants that Produce Chromosome-less Cells......... ........
Sota Hiraga
exaly   +3 more sources

Partitioning of the F plasmid: Overproduction of an essential protein for partition inhibits plasmid maintenance

Molecular and General Genetics MGG, 1987
Multicopy plasmids carrying the sopB gene of the F plasmid inhibit stable inheritance of a coexisting mini-F plasmid. This incompatibility, termed IncG, is found to be caused by excess amounts of the SopB protein, which is essential for accurate partitioning of plasmid DNA molecules into daughter cells.
N, Kusukawa, H, Mori, A, Kondo, S, Hiraga   +3 more
openaire   +2 more sources

Topological Scanning of the P1 Plasmid Partition Site

Journal of Molecular Biology, 1994
The parS site of the P1 plasmid promotes active partition of P1 to daughter cells when the P1 ParA and ParB proteins are provided. The structure of parS was modified by substituting portions of the sequence with synthetic oligonucleotides and testing partition activity of the resulting mutants in an in vivo assay.
Finbarr Hayes, Stuart Austin, S Austin   +2 more
exaly   +3 more sources

Plasmid partitioning and the spreading of P1 partition protein ParB

Molecular Microbiology, 2004
SummaryBacterial plasmids of low copy number, P1 prophage among them, are actively partitioned to nascent daughter cells. The process is typically mediated by a pair of plasmid‐encoded proteins and a cis‐acting DNA site or cluster of sites, referred to as the plasmid centromere.
Oleg, Rodionov, Michael, Yarmolinsky
openaire   +2 more sources

Plasmid-partition functions of the P7 prophage

Journal of Molecular Biology, 1989
The sequences responsible for the proper partition of the P7 plasmid prophage to daughter cells lie within a discrete block of non-similarity between P7 and its close relative P1. The DNA sequence of the P7 region was determined. A segment with near identity to the replication (rep) region of P1 is followed by sequences (P7 par) that are clearly ...
S J Austin
exaly   +3 more sources

Plasmid Localization and Partition in Enterobacteriaceae

EcoSal Plus, 2019
Plasmids are ubiquitous in the microbial world and have been identified in almost all species of bacteria that have been examined. Their localization inside the bacterial cell has been examined for about two decades; typically, they are not randomly distributed, and their positioning depends on copy number and their mode of segregation ...
Jean-Yves, Bouet, Barbara E, Funnell
openaire   +2 more sources

Partition of Plasmid R1: A Computer Simulation

Plasmid, 1993
A computer-simulated population of individual Escherichia coli cells harboring plasmid R1 parA+/parB- has been used to analyze three possible modes of plasmid segregation: equi-partition, in which plasmids are partitioned equally to daughter cells at cell division; single-site inheritance, in which the products of the most recent replication event are ...
R, Rosenfeld, N B, Grover
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Partition-mediated incompatibility of bacterial plasmids

Cell, 1990
Stuart Austin* and Kurt Nordsttimt * Laboratory of Chromosome Biology BRI-Basic Research Program NCI-Frederick Cancer Research Facility Frederick, Maryland 21701 f Department of Microbiology Biomedical Center University of Uppsala Uppsala Sweden Two plasmid species that are unable to coexist stably in a growing population of bacteria are termed ...
S, Austin, K, Nordström
openaire   +2 more sources