Results 61 to 70 of about 28,237 (223)

Dynamic interactions of a conserved enterotoxigenic Escherichia coli adhesin with intestinal mucins govern epithelium engagement and toxin delivery [PDF]

open access: yes, 2016
At present, there is no vaccine for enterotoxigenic Escherichia coli (ETEC), an important cause of diarrheal illness. Nevertheless, recent microbial pathogenesis studies have identified a number of molecules produced by ETEC that contribute to its ...
Bhullar, Kirandeep   +7 more
core   +2 more sources

Induction of L1 and L2 β-Lactamase Production inStenotrophomonas maltophiliaIs Dependent on an AmpR-Type Regulator [PDF]

open access: greenAntimicrobial Agents and Chemotherapy, 2008
ABSTRACTA divergently orientedampRhas been located upstream ofblaL2inStenotrophomonas maltophilia. AmpR is necessary for L1 and L2 β-lactamase induction in response to β-lactam challenge, and activation of AmpR is sufficient to induce L1 and L2 production. L1 induction requires more activation of AmpR than does L2 induction.
Aki Okazaki, Matthew B. Avison
openalex   +4 more sources

Functional investigation of the RHD gene promoter: Molecular changes are rarely responsible for variant D phenotype in Thai donors

open access: yesTransfusion, EarlyView.
Abstract Background While modern technology is increasingly available to identify efficiently the molecular alterations responsible for variant phenotype, a subset of samples still escapes those analyses. In addition to the promoter region, two intronic regions containing GATA1 binding sites within the RHD gene locus were recently shown to modulate the
Caroline Bénech   +2 more
wiley   +1 more source

AMPR/SSMI data comparisons [PDF]

open access: yes
The AMPR was flown during CAPE and STORMFEST, during which some good data were gathered. Significant instrument noise problems were encountered in both deployments which appear to be temperature related.
Cantrel, Eric   +6 more
core   +4 more sources

A comparison of hydrological loading deformations from GRACE mascon and load models with reprocessed IGS station positions

open access: yesGeodesy and Geodynamics
Global Navigation Satellite System (GNSS) observations are critical for establishing high-precision terrestrial reference frames (TRF), but the environmental loading effects, particularly hydrological loading deformation (HYLD), remain unaccounted in ...
Jianhe Feng, Yanlin Li, Na Wei, Zhao Li
doaj   +1 more source

Elevating NagZ Improves Resistance to β-Lactam Antibiotics via Promoting AmpC β-Lactamase in Enterobacter cloacae

open access: yesFrontiers in Microbiology, 2020
Enterobacter cloacae complex (ECC), one of the most common opportunistic pathogens causing multiple infections in human, is resistant to β-lactam antibiotics mainly due to its highly expressed chromosomal AmpC β-lactamase.
Xianggui Yang   +12 more
doaj   +1 more source

Engineering Bacillus megaterium for production of functional intracellular materials [PDF]

open access: yes, 2017
Background: Over the last 10-15 years, a technology has been developed to engineer bacterial polyhydroxybutyrate (PHB) inclusions as functionalized beads, for applications such as vaccines, diagnostics and enzyme immobilization. This has been achieved by
Grage, K, McDermott, P, Rehm, BHA
core   +3 more sources

Sequence‐Based and Functional Analysis for the Discovery of N‐Glycan Degrading Glycosidases From the Microbial Metagenome of the Infant Gut

open access: yesMicrobiologyOpen, Volume 15, Issue 2, April 2026.
This research offers valuable understanding of how N‐glycans are broken down by the gut microbiota of infants, focusing on glycoside hydrolase families GH2, GH20, and GH18. It reveals that the gut microbiota of breastfed infants has a diverse array of genes coding for these enzymes.
Irene Boscá‐Sánchez   +2 more
wiley   +1 more source

A bacterial gene-drive system efficiently edits and inactivates a high copy number antibiotic resistance locus. [PDF]

open access: yes, 2019
Gene-drive systems in diploid organisms bias the inheritance of one allele over another. CRISPR-based gene-drive expresses a guide RNA (gRNA) into the genome at the site where the gRNA directs Cas9-mediated cleavage.
Bier, Ethan   +3 more
core   +1 more source

The QUEST RR Lyrae Survey: III. The Low Galactic Latitude Catalogue [PDF]

open access: yes, 2012
We present results for the QUEST RR Lyrae Survey at low galactic latitude, conducted entirely with observations obtained with the QUEST mosaic camera and the 1.0/1.5m J\"urgen Stock Schmidt telescope at the National Observatory of Venezuela.
Briceño, César   +5 more
core   +2 more sources

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