Results 351 to 360 of about 1,104,645 (398)

Plasmid Profile Typing and Plasmid Fingerprinting

2003
Plasmids are extra-chromosomal molecules of deoxyribonucleic acid (DNA) capable of autonomous replication. Such molecules have been identified in many bacterial genera and usually exist as covalently closed circular (CCC) molecules. Plasmids range in size from less than one megaDalton (MDa) to several hundred MDa.
E. John Threlfall, Neil Woodford
openaire   +3 more sources

Plasmids in Lactobacillus

Critical Reviews in Biotechnology, 1997
This review describes Lactobacillus plasmids on distribution, structure, function, vector construction, vector stability, application, and prospective. About 38% of species of the genus Lactobacillus were found to contain plasmids with different sizes (from 1.2 to 150 kb) and varied numbers (1 or more). Some Lactobacillus plasmids with small sizes were
Tsung-Tsan Wang, Byong H. Lee
openaire   +3 more sources

Macroevolution of plasmids: A model for plasmid speciation

Journal of Theoretical Biology, 1992
A new evolutionary model for diversification in plasmid incompatibility groups (plasmid speciation) is suggested. The model is based on the formation of plasmid cointegrates from two compatible plasmids. The existence of plasmid cointegrates is well known, however, their potential key role in plasmid macroevolution has not yet been recognized.
openaire   +3 more sources

Plasmids in Listeria

Plasmid, 1982
Abstract Thirty-two Listeria strains, including L. monocytogenes of the different Seeliger serovars, L. grayi and L. murrayi, have been analyzed for the presence of plasmids. A cryptic plasmid of 38.5 Md was found in seven strains: in four L. monocytogenes (serovars 1 2 c , 4b, 4d, and Ivanov 1), and in both the L.
M.F. Vicente, Fernando Baquero, J.C. Perez-Diaz   +2 more
openaire   +3 more sources

Stop that plasmid

Nature Reviews Microbiology, 2020
This study developed an assay to screen for drugs that inhibit transfer of antimicrobial resistance plasmids between bacteria.
openaire   +2 more sources

On plasmid incompatibility

Plasmid, 1978
Abstract In this paper is presented a brief review of the current state of information on plasmid incompatibility followed by a detailed mathematical model dealing with incompatibility between autonomous homogenic plasmids and based on the assumption that the intracellular plasmid copy pool is randomized with respect to assortment during cell ...
Richard P. Novick, Frank C. Hoppensteadt
openaire   +3 more sources

Broad host range plasmids can invade an unexpectedly diverse fraction of a soil bacterial community

ISME Journal, 2014
Uli Klümper, Leise Riber, Arnaud Dechesne   +2 more
exaly   +2 more sources

Positive selection and compensatory adaptation interact to stabilize non-transmissible plasmids

Nature Communications, 2014
Plasmids are important drivers of bacterial evolution, but it is challenging to understand how plasmids persist over the long term because plasmid carriage is costly. Classical models predict that horizontal transfer is necessary for plasmid persistence,
Alvaro San Millan
exaly   +2 more sources

Plasmid Copy Number and Plasmid Stability

2003
Many expression systems in research and industry use plasmids as vectors for the production of recombinant proteins or non-proteinous recombinant substances. Plasmids have an essential impact on productivity. Related factors are plasmid copy number, structural plasmid stability and segregational plasmid stability.
openaire   +3 more sources

Plasmid Segregation Mechanisms [PDF]

Annual Review of Genetics, 2005
Bacterial plasmids encode partitioning (par) loci that ensure ordered plasmid segregation prior to cell division. par loci come in two types: those that encode actin-like ATPases and those that encode deviant Walker-type ATPases. ParM, the actin-like ATPase of plasmid R1, forms dynamic filaments that segregate plasmids paired at mid-cell to daughter ...
Ebersbach G, Gerdes K
openaire   +4 more sources