Results 11 to 20 of about 728,418 (291)

Restriction-modification systems in Mycoplasma spp [PDF]

open access: yesGenetics and Molecular Biology, 2007
Restriction and Modification (R-M) systems are present in all Mycoplasma species sequenced so far. The presence of these genes poses barriers to gene transfer and could protect the cell against phage infections.
Marcelo Brocchi   +2 more
doaj   +8 more sources

IS-linked movement of a restriction-modification system. [PDF]

open access: yesPLoS ONE, 2011
Potential mobility of restriction-modification systems has been suggested by evolutionary/bioinformatic analysis of prokaryotic genomes. Here we demonstrate in vivo movement of a restriction-modification system within a genome under a laboratory ...
Noriko Takahashi   +4 more
doaj   +5 more sources

Dependence of post-segregational killing mediated by Type II restriction–modification systems on the lifetime of restriction endonuclease effective activity [PDF]

open access: yesmBio
Plasmid-borne Type II restriction–modification (RM) systems mediate post-segregational killing (PSK). PSK is thought to be caused by the dilution of restriction and modification enzymes during cell division, resulting in accumulation of unmethylated DNA ...
Svetlana Kozlova   +3 more
doaj   +4 more sources

Organization of restriction-modification systems

open access: yesNucleic Acids Research, 1991
The genes for over 100 restriction-modification systems have now been cloned, and approximately one-half have been sequenced. Despite their similar function, they are exceedingly heterogeneous.
Geoffrey G. Wilson
core   +5 more sources

Understanding key features of bacterial restriction-modification systems through quantitative modeling [PDF]

open access: yesBMC Syst Biol, 2017
Restriction-modification (R-M) systems are rudimentary bacterial immune systems. The main components include restriction enzyme (R), which cuts specific unmethylated DNA sequences, and the methyltransferase (M), which protects the same DNA sequences. The
Zdobnov, Evgeny   +11 more
core   +3 more sources

Is the Evolution of Salmonella enterica subsp. enterica Linked to Restriction-Modification Systems? [PDF]

open access: yesmSystems, 2016
Salmonella enterica subsp. enterica bacteria are highly diverse foodborne pathogens that are subdivided into more than 1,500 serovars. The diversity is believed to result from mutational evolution, as well as intra- and interspecies recombination that ...
Louise Roer   +6 more
doaj   +3 more sources

The role of DNA restriction-modification systems in the biology of Bacillus anthracis [PDF]

open access: yesFrontiers in Microbiology, 2016
Restriction-modification (R-M) systems are widespread among prokaryotes and, depending on their type, may be viewed as selfish genetic elements that persist as toxin-antitoxin modules or as cellular defense systems against phage infection.
Ramakrishnan eSitaraman
doaj   +3 more sources

Regulation of genetic flux between bacteria by restriction–modification systems [PDF]

open access: yesProc Natl Acad Sci U S A, 2016
International audienceRestriction–modification (R-M) systems are often regarded as bacte-ria's innate immune systems, protecting cells from infection by mobile genetic elements (MGEs). Their diversification has been recently associated with the emergence
Touchon, Marie   +2 more
core   +3 more sources

Restriction-modification systems have shaped the evolution and distribution of plasmids across bacteria. [PDF]

open access: yesNucleic Acids Res, 2023
Many novel traits such as antibiotic resistance are spread by plasmids between species. Yet plasmids have different host ranges. Restriction-modification systems (R-M systems) are by far the most abundant bacterial defense system and therefore represent ...
Shaw LP, Rocha EPC, MacLean RC.
europepmc   +2 more sources

The Restriction–Modification Systems of Clostridium carboxidivorans P7 [PDF]

open access: yesMicroorganisms, 2023
Clostridium carboxidivorans P7 (DSM 15243) is a bacterium that converts syngas (a mixture of CO, H2, and CO2) into hexanol. An optimized and scaled-up industrial process could therefore provide a renewable source of fuels and chemicals while consuming ...
Patrick Kottenhahn   +4 more
doaj   +2 more sources

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