Results 31 to 40 of about 21,116 (197)

Divergent Evolution and Local Establishment of Multidrug-Resistant <i>Shigella sonnei</i> in China. [PDF]

open access: yesMedComm (2020)
• Evolutionary history and local establishment of Chinese Shigella sonnei are unclear. • Chinese S. sonnei developed into four clades and ONPG‐negative variants. • The antimicrobial resistance phenotype of Clade I was due to an IncB/O/K/Z plasmid. • Antimicrobial resistance of Clade II was due to IncFII and IncB/O/K/Z plasmids.
Liu K   +26 more
europepmc   +2 more sources

CadC-mediated activation of the cadBA promoter in Escherichia coli [PDF]

open access: yes, 2005
The transcriptional activator CadC in Escherichia coli, a member of the ToxR-like proteins, activates transcription of the cadBA operon encoding the lysine decarboxylase CadA and the lysine-cadaverine antiporter CadB. cadBA is induced under conditions of
Kuper, C., Jung, K.
core   +1 more source

Physiological regulation of a decontrolled lac operon [PDF]

open access: yesJournal of Bacteriology, 1977
The expression of the lac operon was studied under a variety of growth conditions in induced and in constitutive cells of Escherichia coli that carried different catabolite-insensitive lac promoters. Use of such "decontrolled" lac operons permitted a study of the expression of an operon that was presumably subject only to passive control. Since the use
B L, Wanner, R, Kodaira, F C, Neidhardt
openaire   +2 more sources

Development of a Positive-readout Mouse Model of siRNA Pharmacodynamics

open access: yesMolecular Therapy: Nucleic Acids, 2013
Development of RNAi-based therapeutics has the potential to revolutionize treatment options for a range of human diseases. However, as with gene therapy, a major barrier to progress is the lack of methods to achieve and measure efficient delivery for ...
Mark Stevenson   +9 more
doaj   +1 more source

GlaR (YugA)—a novel RpiR‐family transcription activator of the Leloir pathway of galactose utilization in Lactococcus lactis IL1403

open access: yesMicrobiologyOpen, 2019
Bacteria can utilize diverse sugars as carbon and energy source, but the regulatory mechanisms directing the choice of the preferred substrate are often poorly understood.
Tamara Aleksandrzak‐Piekarczyk   +2 more
doaj   +1 more source

A modified consumer inkjet for spatiotemporal control of gene expression.

open access: yesPLoS ONE, 2009
This paper presents a low-cost inkjet dosing system capable of continuous, two-dimensional spatiotemporal regulation of gene expression via delivery of diffusible regulators to a custom-mounted gel culture of E. coli. A consumer-grade, inkjet printer was
Daniel J Cohen   +2 more
doaj   +1 more source

In silico approach for the identification of mirror repeats in selected operon genes of Escherichia coli strain K-12 substrain MG1655

open access: yesBiomedical and Biotechnology Research Journal, 2022
Background: The repeating elements in the genes or genomes of living organisms are associated with a variety of functions at the molecular level. Mirror repeats (MRs) are unique type of repeat sequences among them, which are found to be linked with H-DNA
Sandeep Yadav   +2 more
doaj   +1 more source

Direct measurements of IPTG enable analysis of the induction behavior of E. coli in high cell density cultures

open access: yesMicrobial Cell Factories, 2012
Background The E. coli lac operon and its components have been studied for decades, and lac-derived systems are widely used for recombinant protein production.
Fernández-Castané Alfred   +2 more
doaj   +1 more source

Use of a Role-Playing Activity To Increase Student Understanding of Bacterial Gene Regulation

open access: yesJournal of Microbiology & Biology Education, 2023
Undergraduate students often struggle to understand the basics of bacterial gene regulation, a key concept in microbiology. They find it hard to visualize the architecture of a bacterial operon or how the gene, RNA, and protein components interact with ...
Vinaya Sampath
doaj   +1 more source

From Binary to Multivalued to Continuous Models: The lac Operon as a Case Study

open access: yesJournal of Integrative Bioinformatics, 2010
Using the lac operon as a paradigmatic example for a gene regulatory system in prokaryotes, we demonstrate how qualitative knowledge can be initially captured using simple discrete (Boolean) models and then stepwise refined to multivalued logical models ...
Franke Raimo   +2 more
doaj   +2 more sources

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