Results 91 to 100 of about 259,182 (233)

Chemical Syntheses of 3′ and 5′ Phosphorylated Oligonucleotides: An Overview

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
This review provides an overview of the various chemical methods employed in the synthesis of oligonucleotides bearing a phosphate group at their 3′ or 5′ end. Notably, it presents modified phosphoramidites and supports developed for this purpose. Oligonucleotides (ON) with a phosphate monoester group at their 3′ or 5′ end have applications in many ...
Rémy Lartia
wiley   +1 more source

Competition-driven eco-evolutionary feedback reshapes bacteriophage lambda’s fitness landscape and enables speciation

open access: yesNature Communications
A major challenge in evolutionary biology is explaining how populations navigate rugged fitness landscapes without getting trapped on local optima.
Michael B. Doud   +5 more
doaj   +1 more source

On‐site pilot‐scale advanced oxidation pretreatment of hospital wastewater: assessment of pharmaceuticals, pathogens, antibiotic resistance genes and acute ecotoxicity

open access: yesJournal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND Hospital premises generate wastewater containing a wide spectrum of contaminants, such as pharmaceutically active compounds (PhACs), antibiotic resistance genes (ARGs) and pathogenic microorganisms, whilst plenty of them are classified under the antibiotic resistant bacteria (ΑRΒ) category.
Andreas Kaliakatsos   +11 more
wiley   +1 more source

Optimal first-passage time in gene regulatory networks

open access: yes, 2014
The inherent probabilistic nature of the biochemical reactions, and low copy number of species can lead to stochasticity in gene expression across identical cells.
Ghusinga, Khem Raj, Singh, Abhyudai
core   +1 more source

Trapped in the web: network architectures spread coevolution and shape adaptation

open access: yesOikos, EarlyView.
Adaptation is critical for biodiversity to persist under global change. Within ecological communities, species often face tradeoffs between adapting to shifting abiotic conditions and navigating the complex selective pressures imposed by interaction networks.
Alexandre Fuster‐ Calvo   +5 more
wiley   +1 more source

Precision targeting of genetic variations in mixed bacterial cultures using CRISPR-Cas12a-programmed λ phages

open access: yesFrontiers in Microbiology
The CRISPR-Cas system, an adaptive immune mechanism in prokaryotes against bacteriophages, has been developed into a versatile tool for recognizing and cleaving target nucleic acid sequences.
Chan Kyeong Lee   +3 more
doaj   +1 more source

Phase variation and the Hin protein: in vivo activity measurements, protein overproduction, and purification [PDF]

open access: yes, 1984
The alternate expression of the Salmonella flagellin genes H1 and H2 is controlled by the orientation of a 995-base-pair invertible segment of DNA located at the 5' end of the H2 gene.
Bruist, Michael F., Simon, Melvin I.
core  

Rapid identification of E. coli bacteriophages using mass spectrometry [PDF]

open access: yes, 2017
Objective: The current increasing interest in the application of mass spectrometry, in particular MALDI-TOF MS, to identification of bacteria and fungi calls for a need to utilise this technology for identification of other infectious agents such as ...
Pantoja Munoz, Leonardo   +4 more
core   +1 more source

New map of bacteriophage lambda DNA [PDF]

open access: yesJournal of Virology, 1980
A map of bacteriophage lambda was constructed, including accurate positions for all 41 cut sites made by 12 different restriction enzymes. Over 100 fragments from single, multiple, and partial enzyme digestions were measured versus standards that were calibrated with respect to DNA molecules of known sequence.
D L, Daniels, J R, de Wet, F R, Blattner
openaire   +2 more sources

Liquid Biopsy Differentiation of Pancreatic Cancer From Non‐Cancerous Pancreatic Disease Using Dielectrophoresis‐Recovered Nanoparticles Carrying Cell‐Free DNA and Protein Biomarkers

open access: yesSmall, EarlyView.
A new nanoparticle‐based biomarker panel is described that can differentiate pancreatic cancer from benign pancreatic disease with a high level of performance. This was enabled by microelectrode array recovery technology that used dielectrophoresis (DEP) to quickly and efficiently recover the nanoparticles from patient plasma samples, followed by on ...
Anna Malakian   +23 more
wiley   +1 more source

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