Results 41 to 50 of about 8,246,118 (384)

The Role of Minor Pilins in Assembly and Function of the Competence Pilus of Streptococcus pneumoniae

open access: yesFrontiers in Cellular and Infection Microbiology, 2021
The remarkable genomic plasticity of Streptococcus pneumoniae largely depends on its ability to undergo natural genetic transformation. To take up extracellular DNA, S. pneumoniae assembles competence pili composed of the major pilin ComGC.
Vitor Oliveira   +6 more
doaj   +1 more source

Natural competence for transformation [PDF]

open access: yesCurrent Biology, 2016
While most molecular biologists are familiar with the artificial transformation of bacteria in the context of laboratory cloning experiments, natural competence for transformation refers to a specific physiological state in which prokaryotes are able to take up genetic material from their surroundings. Occasionally, such absorbed DNA is recombined into
openaire   +5 more sources

rpoN1, but not rpoN2, is required for twitching motility, natural competence, growth on nitrate and virulence of Ralstonia solanacearum

open access: yesFrontiers in Microbiology, 2015
The plant pathogen Ralstonia solanacearum has two genes encoding for the sigma factor 54: rpoN1, located in the chromosome and rpoN2, located in a distinct ‘megaplasmid’ replicon.
Suvendra Kumar Ray   +7 more
doaj   +1 more source

SMARANDACHE REVERSE AUTO CORRELATED SEQUENCES AND SOME FIBONACCI DERIVED SMARANDACHE SEQUENCES [PDF]

open access: yes, 1999
Obtaining sequences by 'n' times Smarandache Reverse Auto Correlation Transformation (SRACT) of the set of natural ...
Murthy, Amamath
core   +1 more source

The Generation of Successive Unmarked Mutations and Chromosomal Insertion of Heterologous Genes in Actinobacillus pleuropneumoniae Using Natural Transformation [PDF]

open access: yes, 2014
We have developed a simple method of generating scarless, unmarked mutations in Actinobacillus pleuropneumoniae by exploiting the ability of this bacterium to undergo natural transformation, and with no need to introduce plasmids encoding recombinases or
A Maas   +46 more
core   +4 more sources

On Normal ordering and Canonical transformations in Thermal Field Theory [PDF]

open access: yes, 1997
We look at a real scalar field in thermal equilibrium in the context of the new normal ordering and field split defined by Evans and Steer. We show that the field split defines a natural canonical transformation, but that this transformation differs from
Blasone, M.   +3 more
core   +4 more sources

Nucleosomes affect local transformation efficiency [PDF]

open access: yes, 2012
Genetic transformation is a natural process during which foreign DNA enters a cell and integrates into the genome. Apart from its relevance for horizontal gene transfer in nature, transformation is also the cornerstone of today's recombinant gene ...
Aslankoohi, Elham   +6 more
core   +2 more sources

Bacterial Transformation Buffers Environmental Fluctuations through the Reversible Integration of Mobile Genetic Elements

open access: yesmBio, 2020
Horizontal gene transfer (HGT) promotes the spread of genes within bacterial communities. Among the HGT mechanisms, natural transformation stands out as being encoded by the bacterial core genome.
Gabriel Carvalho   +7 more
doaj   +1 more source

Simulating Multigraph Transformations Using Simple Graphs [PDF]

open access: yes, 2007
Application of graph transformations for software verification and model transformation is an emergent field of research. In particular, graph transformation approaches provide a natural way of modelling object oriented systems and semantics of object ...
Boneva, Iovka   +3 more
core   +4 more sources

Metric spaces and textures

open access: yesApplied General Topology, 2017
Textures are point-set setting for fuzzy sets, and they provide a framework for the complement-free mathematical concepts. Further dimetric on textures is a gener- alization of classical metric spaces.
Senol Dost
doaj   +1 more source

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