Results 41 to 50 of about 1,080,559 (427)

Antiparallel plasmid-plasmid pairing may control P1 plasmid replication. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1991
The copy number of the P1 plasmid replicon is stringently controlled, giving only one or two copies per newborn cell. Control is achieved by the action of the copy-control locus incA, which contains nine repeats of the 19-basepair binding site for the plasmid-encoded initiator protein RepA.
Ann L. Abeles, Stuart Austin
openaire   +3 more sources

Yersinia pestis pathogenicity

open access: yesЖурнал микробиологии, эпидемиологии и иммунобиологии, 2019
Yersinia pestis belongs to those pathogenic bacteria which produce lipopolysaccharide (LPS) having the function of a toxin. In order to make a toxic effect the polymer must be separated from the cell outer membrane and presented to the immunocompetent ...
V. I. Tynyanova   +3 more
doaj   +1 more source

The Hypercomplex Genome of an Insect Reproductive Parasite Highlights the Importance of Lateral Gene Transfer in Symbiont Biology

open access: yesmBio, 2020
Mobile elements—plasmids and phages—are important components of microbial function and evolution via traits that they encode and their capacity to shuttle genetic material between species. We here report the unusually rich array of mobile elements within
Crystal L. Frost   +6 more
doaj   +1 more source

Tigecycline-resistant Escherichia coli ST761 carrying tet(X4) in a pig farm, China

open access: yesFrontiers in Microbiology, 2022
This study aimed to investigate the prevalence and characterization of tet(X4) in Escherichia coli isolates from a pig farm in Shanghai, China, and to elucidate tet(X4) dissemination mechanism in this swine farm. Forty-nine (80.33%) E.
Jing Wang   +13 more
doaj   +1 more source

Noise enhanced persistence in a biochemical regulatory network with feedback control [PDF]

open access: yesPhys. Rev. Lett. 100, 058105 (2008), 2007
We find that discrete noise of inhibiting (signal) molecules can greatly delay the extinction of plasmids in a plasmid replication system: a prototypical biochemical regulatory network. We calculate the probability distribution of the metastable state of the plasmids and show on this example that the reaction rate equations may fail in predicting the ...
arxiv   +1 more source

Plasmids in Rhizobia: The Role of Nonsymbiotic Plasmids

open access: yesMolecular Plant-Microbe Interactions, 1996
Peer ...
Mercado-Blanco, Jesús, Toro, Nicolás
openaire   +3 more sources

Plasmid persistence: costs, benefits, and the plasmid paradox [PDF]

open access: yesCanadian Journal of Microbiology, 2018
Plasmids are extrachromosomal DNA elements that can be found throughout bacteria, as well as in other domains of life. Nonetheless, the evolutionary processes underlying the persistence of plasmids are incompletely understood. Bacterial plasmids may encode genes for traits that are sometimes beneficial to their hosts, such as antimicrobial resistance ...
Carroll, Amanda C., Wong, Alex
openaire   +2 more sources

Predictive Modeling of Non-Viral Gene Transfer [PDF]

open access: yesBiotechnology and Bioengineering, Volume 105, Issue 4, 805-813, (2010), 2010
In non-viral gene delivery, the variance of transgenic expression stems from the low number of plasmids successfully transferred. Here, we experimentally determine Lipofectamine- and PEI-mediated exogenous gene expression distributions from single cell time-lapse analysis.
arxiv   +1 more source

Conjugative Selectivity of Plasmids Is Affected by Coexisting Recipient Candidates

open access: yesmSphere, 2018
Understanding the mechanisms underlying plasmid behavior under conditions of various environments is important to predict the fate of plasmids in nature.
Ayako Sakuda   +3 more
doaj   +1 more source

Guidelines for the estimation and reporting of plasmid conjugation rates [PDF]

open access: yesarXiv, 2023
Conjugation is a central characteristic of plasmid biology and an important mechanism of horizontal gene transfer in bacteria. However, there is little consensus on how to accurately estimate and report plasmid conjugation rates, in part due to the wide range of available methods.
arxiv  

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