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Deletion of the Zinc Transporter Lipoprotein AdcAII Causes Hyperencapsulation of Streptococcus pneumoniae Associated with Distinct Alleles of the Type I Restriction-Modification System [PDF]

open access: goldmBio, 2020
The capsule is the dominant Streptococcus pneumoniae virulence factor, yet how variation in capsule thickness is regulated is poorly understood. Here, we describe an unexpected relationship between mutation of adcAII, which encodes a zinc uptake ...
Claire Durmort   +11 more
doaj   +9 more sources

A novel SfaNI-like restriction-modification system in Caldicellulosiruptor extents the genetic engineering toolbox for this genus [PDF]

open access: goldPLoS ONE, 2022
Caldicellulosiruptor is a genus of thermophilic to hyper-thermophilic microorganisms that express and secrete an arsenal of enzymes degrading lignocellulosic biomasses into fermentable sugars.
Steve Swinnen   +7 more
doaj   +5 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

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

open access: goldMicroorganisms, 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   +5 more sources

An alternative approach to study the enzymatic specificities of the CfrBI restriction–modification system [PDF]

open access: goldHeliyon, 2019
Restriction–modification systems (RMS) are the main gene-engineering tools and a suitable model to study the molecular mechanisms of catalysis and DNA–protein interactions.
Marina V. Zakharova   +3 more
doaj   +4 more sources

Characterization of the Type I Restriction Modification System Broadly Conserved among Group A Streptococci [PDF]

open access: goldmSphere, 2021
Although prokaryotic DNA methylation investigations have long focused on immunity against exogenous DNA, it has been recently recognized that DNA methylation impacts gene expression and phase variation in Streptococcus pneumoniae and Streptococcus suis ...
Sruti DebRoy   +8 more
doaj   +3 more sources

A mobile restriction modification system consisting of methylases on the IncA/C plasmid [PDF]

open access: goldMobile DNA, 2019
Background IncA/C plasmids play important roles in the development and dissemination of multidrug resistance in bacteria. These plasmids carry three methylase genes, two of which show cytosine specificity.
Ruibai Wang, Jing Lou, Jie Li
doaj   +4 more sources

The extremophile Picrophilus torridus carries a DNA adenine methylase M.PtoI that is part of a Type I restriction-modification system [PDF]

open access: yesFrontiers in Microbiology, 2023
DNA methylation events mediated by orphan methyltransferases modulate various cellular processes like replication, repair and transcription. Bacteria and archaea also harbor DNA methyltransferases that are part of restriction-modification systems, which ...
Pallavi Gulati   +3 more
doaj   +2 more sources

Delineation of a lactococcal conjugation system reveals a restriction‐modification evasion system [PDF]

open access: goldMicrobial Biotechnology, 2023
Plasmid pUC11B is a 49.3‐kb plasmid harboured by the fermented meat isolate Lactococcus lactis subsp. lactis UC11. Among other features, pUC11B encodes a pMRC01‐like conjugation system and tetracycline‐resistance.
Guillermo Ortiz Charneco   +8 more
doaj   +2 more sources

The DNA Phosphorothioation Restriction-Modification System Influences the Antimicrobial Resistance of Pathogenic Bacteria [PDF]

open access: yesMicrobiology Spectrum, 2023
Bacterial defense barriers, such as DNA methylation-associated restriction-modification (R-M) and the CRISPR-Cas system, play an important role in bacterial antimicrobial resistance (AMR).
Congrui Xu   +9 more
doaj   +2 more sources

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