Results 31 to 40 of about 982,599 (302)

Transformation of the Methylotrophic Actinomycete Amycolatopis methanolica with Plasmid DNA: Stimulatory Effect of a pMEA300-Encoded Gene [PDF]

open access: yes, 1995
Amycolatopsis methanolica contains a 13.29-kb plasmid (pMEA300) present both in the free state and integrated at a unique genomic location. A pMEA300-free derivative (strain WV1) was selected, allowing further analysis of pMEA300-encoded functions. Whole
Dijkhuizen, L.,   +2 more
core   +2 more sources

Monomeric PcrA helicase processively unwinds plasmid lengths of DNA in the presence of the initiator protein RepD [PDF]

open access: yes, 2013
The helicase PcrA unwinds DNA during asymmetric replication of plasmids, acting with an initiator protein, in our case RepD. Detailed kinetics of PcrA activity were measured using bulk solution and a single-molecule imaging technique to investigate the ...
Arbore   +54 more
core   +1 more source

On the isolation of TI-plasmid from Agrobacterium tumefaciens [PDF]

open access: yes, 1976
An efficient lysis method for Agrobacterium cells was developed, which allows a reproducible isolation of the tumor inducing (TI)-plasmid. The lysis method is based on the sensitivity of this bacterium to incubation with lysozyme, n-dodecylamine,EDTA ...
Dons, Johannes JM   +7 more
core   +2 more sources

Plasmid DNA-Based Alphavirus Vaccines [PDF]

open access: yesVaccines, 2019
Alphaviruses have been engineered as vectors for high-level transgene expression. Originally, alphavirus-based vectors were applied as recombinant replication-deficient particles, subjected to expression studies in mammalian and non-mammalian cell lines, primary cell cultures, and in vivo.
openaire   +3 more sources

Quantification of Plasmid Copy Number with Single Colour Droplet Digital PCR. [PDF]

open access: yesPLoS ONE, 2017
Bacteria can be considered as biological nanofactories that manufacture a cornucopia of bioproducts most notably recombinant proteins. As such, they must perfectly match with appropriate plasmid vectors to ensure successful overexpression of target genes.
Magdalena Plotka   +2 more
doaj   +1 more source

Structure of a translocation signal domain mediating conjugative transfer by Type IV secretion systems [PDF]

open access: yes, 2013
Relaxases are proteins responsible for the transfer of plasmid and chromosomal DNA from one bacterium to another during conjugation. They covalently react with a specific phosphodiester bond within DNA origin of transfer sequences, forming a nucleo ...
Gruber, C.J.   +7 more
core   +1 more source

Topological Behavior of Plasmid DNA [PDF]

open access: yesMicrobiology Spectrum, 2014
ABSTRACT The discovery of the B-form structure of DNA by Watson and Crick led to an explosion of research on nucleic acids in the fields of biochemistry, biophysics, and genetics. Powerful techniques were developed to reveal a myriad of different structural conformations that change B-DNA as it is transcribed, replicated, and ...
N Patrick, Higgins   +1 more
openaire   +2 more sources

Polymer induced condensation of dna supercoils [PDF]

open access: yes, 2008
Macromolecular crowding is thought to be a significant factor driving DNA condensation in prokaryotic cells. Whereas DNA in prokaryotes is supercoiled, studies on crowding-induced DNA condensation have so far focused on linear DNA.
Bessa Ramos Jr., J.E.   +2 more
core   +2 more sources

Carbon-nanotube for Transient Expression in Rice Calli

open access: yesHayati Journal of Biosciences, 2022
Transient gene expression is an important technique in gene functional analysis, protein production and in plants. However, traditional transient expression methods using Agrobacterium are time-consuming with low efficiency.
Paphawarin Pinyokham   +5 more
doaj   +1 more source

Immunogenicity of COVID-eVax Delivered by Electroporation Is Moderately Impacted by Temperature and Molecular Isoforms

open access: yesVaccines, 2023
DNA integrity is a key issue in gene therapy and genetic vaccine approaches based on plasmid DNA. In contrast to messenger RNA that requires a controlled cold chain for efficacy, DNA molecules are considered to be more stable.
Federico D’Alessio   +11 more
doaj   +1 more source

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